Home / 21,025.29-29,001.09-12,641.79

Finding the Fourth Proportional to 21,025.29, 29,001.09 and 12,641.79

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Solution

The fourth proportional to 21,025.29, 29,001.09 and 12,641.79 is: 17,437.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025.29 : 29,001.09 = 12,641.79 : x
  2. Step 2: Convert to fraction form
    21,025.29/29,001.09 = 12,641.79/x
  3. Step 3: Cross multiply
    21,025.29x = 29,001.09 × 12,641.79
  4. Step 4: Simplify right side
    21,025.29x = 366,625,689.55
  5. Step 5: Solve for x
    x = 366,625,689.55/21,025.29
  6. Step 6: Final answer
    x = 17,437.37

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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.