Home / 27,786.04-38,344.74-15,210.76

Finding the Fourth Proportional to 27,786.04, 38,344.74 and 15,210.76

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Solution

The fourth proportional to 27,786.04, 38,344.74 and 15,210.76 is: 20,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,786.04 : 38,344.74 = 15,210.76 : x
  2. Step 2: Convert to fraction form
    27,786.04/38,344.74 = 15,210.76/x
  3. Step 3: Cross multiply
    27,786.04x = 38,344.74 × 15,210.76
  4. Step 4: Simplify right side
    27,786.04x = 583,252,637.40
  5. Step 5: Solve for x
    x = 583,252,637.40/27,786.04
  6. Step 6: Final answer
    x = 20,990.85

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Half scale
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Double scale
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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.