Home / 21,338.88-32,017.92-13,545.60

Finding the Fourth Proportional to 21,338.88, 32,017.92 and 13,545.60

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Solution

The fourth proportional to 21,338.88, 32,017.92 and 13,545.60 is: 20,324.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,338.88 : 32,017.92 = 13,545.60 : x
  2. Step 2: Convert to fraction form
    21,338.88/32,017.92 = 13,545.60/x
  3. Step 3: Cross multiply
    21,338.88x = 32,017.92 × 13,545.60
  4. Step 4: Simplify right side
    21,338.88x = 433,701,937.15
  5. Step 5: Solve for x
    x = 433,701,937.15/21,338.88
  6. Step 6: Final answer
    x = 20,324.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.