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Finding the Fourth Proportional to 25,721, 35,494.98 and 14,545.16

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Solution

The fourth proportional to 25,721, 35,494.98 and 14,545.16 is: 20,072.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,721 : 35,494.98 = 14,545.16 : x
  2. Step 2: Convert to fraction form
    25,721/35,494.98 = 14,545.16/x
  3. Step 3: Cross multiply
    25,721x = 35,494.98 × 14,545.16
  4. Step 4: Simplify right side
    25,721x = 516,280,163.30
  5. Step 5: Solve for x
    x = 516,280,163.30/25,721
  6. Step 6: Final answer
    x = 20,072.32

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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.