Home / 28,444.01-39,229.11-21,358.13

Finding the Fourth Proportional to 28,444.01, 39,229.11 and 21,358.13

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Solution

The fourth proportional to 28,444.01, 39,229.11 and 21,358.13 is: 29,456.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,444.01 : 39,229.11 = 21,358.13 : x
  2. Step 2: Convert to fraction form
    28,444.01/39,229.11 = 21,358.13/x
  3. Step 3: Cross multiply
    28,444.01x = 39,229.11 × 21,358.13
  4. Step 4: Simplify right side
    28,444.01x = 837,860,431.16
  5. Step 5: Solve for x
    x = 837,860,431.16/28,444.01
  6. Step 6: Final answer
    x = 29,456.48

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Double scale
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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.