Home / 20,587.13-30,822.31-13,545.94

Finding the Fourth Proportional to 20,587.13, 30,822.31 and 13,545.94

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Solution

The fourth proportional to 20,587.13, 30,822.31 and 13,545.94 is: 20,280.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587.13 : 30,822.31 = 13,545.94 : x
  2. Step 2: Convert to fraction form
    20,587.13/30,822.31 = 13,545.94/x
  3. Step 3: Cross multiply
    20,587.13x = 30,822.31 × 13,545.94
  4. Step 4: Simplify right side
    20,587.13x = 417,517,161.92
  5. Step 5: Solve for x
    x = 417,517,161.92/20,587.13
  6. Step 6: Final answer
    x = 20,280.49

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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.