Home / 27,272.59-37,640.79-15,785.83

Finding the Fourth Proportional to 27,272.59, 37,640.79 and 15,785.83

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Solution

The fourth proportional to 27,272.59, 37,640.79 and 15,785.83 is: 21,787.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,272.59 : 37,640.79 = 15,785.83 : x
  2. Step 2: Convert to fraction form
    27,272.59/37,640.79 = 15,785.83/x
  3. Step 3: Cross multiply
    27,272.59x = 37,640.79 × 15,785.83
  4. Step 4: Simplify right side
    27,272.59x = 594,191,129.46
  5. Step 5: Solve for x
    x = 594,191,129.46/27,272.59
  6. Step 6: Final answer
    x = 21,787.12

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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.