Home / 27,785.53-38,344.19-15,210.28

Finding the Fourth Proportional to 27,785.53, 38,344.19 and 15,210.28

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Solution

The fourth proportional to 27,785.53, 38,344.19 and 15,210.28 is: 20,990.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,785.53 : 38,344.19 = 15,210.28 : x
  2. Step 2: Convert to fraction form
    27,785.53/38,344.19 = 15,210.28/x
  3. Step 3: Cross multiply
    27,785.53x = 38,344.19 × 15,210.28
  4. Step 4: Simplify right side
    27,785.53x = 583,225,838.15
  5. Step 5: Solve for x
    x = 583,225,838.15/27,785.53
  6. Step 6: Final answer
    x = 20,990.27

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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.