Home / 27,780.19-38,337.59-15,204.94

Finding the Fourth Proportional to 27,780.19, 38,337.59 and 15,204.94

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Solution

The fourth proportional to 27,780.19, 38,337.59 and 15,204.94 is: 20,983.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,780.19 : 38,337.59 = 15,204.94 : x
  2. Step 2: Convert to fraction form
    27,780.19/38,337.59 = 15,204.94/x
  3. Step 3: Cross multiply
    27,780.19x = 38,337.59 × 15,204.94
  4. Step 4: Simplify right side
    27,780.19x = 582,920,755.69
  5. Step 5: Solve for x
    x = 582,920,755.69/27,780.19
  6. Step 6: Final answer
    x = 20,983.33

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Half scale
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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.