Home / 28,363.40-42,545.10-13,601.15

Finding the Fourth Proportional to 28,363.40, 42,545.10 and 13,601.15

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Solution

The fourth proportional to 28,363.40, 42,545.10 and 13,601.15 is: 20,401.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,363.40 : 42,545.10 = 13,601.15 : x
  2. Step 2: Convert to fraction form
    28,363.40/42,545.10 = 13,601.15/x
  3. Step 3: Cross multiply
    28,363.40x = 42,545.10 × 13,601.15
  4. Step 4: Simplify right side
    28,363.40x = 578,662,286.87
  5. Step 5: Solve for x
    x = 578,662,286.87/28,363.40
  6. Step 6: Final answer
    x = 20,401.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.