Home / 20,712.23-31,081.13-9,026.36

Finding the Fourth Proportional to 20,712.23, 31,081.13 and 9,026.36

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Solution

The fourth proportional to 20,712.23, 31,081.13 and 9,026.36 is: 13,545.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712.23 : 31,081.13 = 9,026.36 : x
  2. Step 2: Convert to fraction form
    20,712.23/31,081.13 = 9,026.36/x
  3. Step 3: Cross multiply
    20,712.23x = 31,081.13 × 9,026.36
  4. Step 4: Simplify right side
    20,712.23x = 280,549,468.59
  5. Step 5: Solve for x
    x = 280,549,468.59/20,712.23
  6. Step 6: Final answer
    x = 13,545.11

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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.