Home / 28,349.21-39,123.52-16,251.71

Finding the Fourth Proportional to 28,349.21, 39,123.52 and 16,251.71

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Solution

The fourth proportional to 28,349.21, 39,123.52 and 16,251.71 is: 22,428.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,349.21 : 39,123.52 = 16,251.71 : x
  2. Step 2: Convert to fraction form
    28,349.21/39,123.52 = 16,251.71/x
  3. Step 3: Cross multiply
    28,349.21x = 39,123.52 × 16,251.71
  4. Step 4: Simplify right side
    28,349.21x = 635,823,864.97
  5. Step 5: Solve for x
    x = 635,823,864.97/28,349.21
  6. Step 6: Final answer
    x = 22,428.27

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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.