Home / 21,294.28-31,913.34-16,347.88

Finding the Fourth Proportional to 21,294.28, 31,913.34 and 16,347.88

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Solution

The fourth proportional to 21,294.28, 31,913.34 and 16,347.88 is: 24,500.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294.28 : 31,913.34 = 16,347.88 : x
  2. Step 2: Convert to fraction form
    21,294.28/31,913.34 = 16,347.88/x
  3. Step 3: Cross multiply
    21,294.28x = 31,913.34 × 16,347.88
  4. Step 4: Simplify right side
    21,294.28x = 521,715,452.72
  5. Step 5: Solve for x
    x = 521,715,452.72/21,294.28
  6. Step 6: Final answer
    x = 24,500.26

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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.