Home / 28,545.30-39,392.57-15,799.35

Finding the Fourth Proportional to 28,545.30, 39,392.57 and 15,799.35

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Solution

The fourth proportional to 28,545.30, 39,392.57 and 15,799.35 is: 21,803.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545.30 : 39,392.57 = 15,799.35 : x
  2. Step 2: Convert to fraction form
    28,545.30/39,392.57 = 15,799.35/x
  3. Step 3: Cross multiply
    28,545.30x = 39,392.57 × 15,799.35
  4. Step 4: Simplify right side
    28,545.30x = 622,377,000.83
  5. Step 5: Solve for x
    x = 622,377,000.83/28,545.30
  6. Step 6: Final answer
    x = 21,803.13

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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.