Home / 28,938.72-39,934.26-16,363.68

Finding the Fourth Proportional to 28,938.72, 39,934.26 and 16,363.68

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Solution

The fourth proportional to 28,938.72, 39,934.26 and 16,363.68 is: 22,581.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,938.72 : 39,934.26 = 16,363.68 : x
  2. Step 2: Convert to fraction form
    28,938.72/39,934.26 = 16,363.68/x
  3. Step 3: Cross multiply
    28,938.72x = 39,934.26 × 16,363.68
  4. Step 4: Simplify right side
    28,938.72x = 653,471,451.68
  5. Step 5: Solve for x
    x = 653,471,451.68/28,938.72
  6. Step 6: Final answer
    x = 22,581.21

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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.