Home / 27,785.04-38,343.36-15,209.76

Finding the Fourth Proportional to 27,785.04, 38,343.36 and 15,209.76

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Solution

The fourth proportional to 27,785.04, 38,343.36 and 15,209.76 is: 20,989.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,785.04 : 38,343.36 = 15,209.76 : x
  2. Step 2: Convert to fraction form
    27,785.04/38,343.36 = 15,209.76/x
  3. Step 3: Cross multiply
    27,785.04x = 38,343.36 × 15,209.76
  4. Step 4: Simplify right side
    27,785.04x = 583,193,303.19
  5. Step 5: Solve for x
    x = 583,193,303.19/27,785.04
  6. Step 6: Final answer
    x = 20,989.47

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Half scale
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Double scale
Find fourth proportional to 27,786.04, 38,344.74 and 15,210.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.