Home / 27,065.28-37,349.98-15,128.61

Finding the Fourth Proportional to 27,065.28, 37,349.98 and 15,128.61

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Solution

The fourth proportional to 27,065.28, 37,349.98 and 15,128.61 is: 20,877.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,065.28 : 37,349.98 = 15,128.61 : x
  2. Step 2: Convert to fraction form
    27,065.28/37,349.98 = 15,128.61/x
  3. Step 3: Cross multiply
    27,065.28x = 37,349.98 × 15,128.61
  4. Step 4: Simplify right side
    27,065.28x = 565,053,243.11
  5. Step 5: Solve for x
    x = 565,053,243.11/27,065.28
  6. Step 6: Final answer
    x = 20,877.42

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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.