Home / 21,217.90-29,234.36-14,132.02

Finding the Fourth Proportional to 21,217.90, 29,234.36 and 14,132.02

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Solution

The fourth proportional to 21,217.90, 29,234.36 and 14,132.02 is: 19,471.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,217.90 : 29,234.36 = 14,132.02 : x
  2. Step 2: Convert to fraction form
    21,217.90/29,234.36 = 14,132.02/x
  3. Step 3: Cross multiply
    21,217.90x = 29,234.36 × 14,132.02
  4. Step 4: Simplify right side
    21,217.90x = 413,140,560.21
  5. Step 5: Solve for x
    x = 413,140,560.21/21,217.90
  6. Step 6: Final answer
    x = 19,471.32

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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.