Home / 21,455.90-29,609.18-12,024.46

Finding the Fourth Proportional to 21,455.90, 29,609.18 and 12,024.46

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Solution

The fourth proportional to 21,455.90, 29,609.18 and 12,024.46 is: 16,593.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455.90 : 29,609.18 = 12,024.46 : x
  2. Step 2: Convert to fraction form
    21,455.90/29,609.18 = 12,024.46/x
  3. Step 3: Cross multiply
    21,455.90x = 29,609.18 × 12,024.46
  4. Step 4: Simplify right side
    21,455.90x = 356,034,400.54
  5. Step 5: Solve for x
    x = 356,034,400.54/21,455.90
  6. Step 6: Final answer
    x = 16,593.78

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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.