Home / 28,912.40-39,898.92-16,337.12

Finding the Fourth Proportional to 28,912.40, 39,898.92 and 16,337.12

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Solution

The fourth proportional to 28,912.40, 39,898.92 and 16,337.12 is: 22,545.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912.40 : 39,898.92 = 16,337.12 : x
  2. Step 2: Convert to fraction form
    28,912.40/39,898.92 = 16,337.12/x
  3. Step 3: Cross multiply
    28,912.40x = 39,898.92 × 16,337.12
  4. Step 4: Simplify right side
    28,912.40x = 651,833,443.91
  5. Step 5: Solve for x
    x = 651,833,443.91/28,912.40
  6. Step 6: Final answer
    x = 22,545.12

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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.