Home / 21,456.61-32,132.95-10,898.86

Finding the Fourth Proportional to 21,456.61, 32,132.95 and 10,898.86

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Solution

The fourth proportional to 21,456.61, 32,132.95 and 10,898.86 is: 16,321.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456.61 : 32,132.95 = 10,898.86 : x
  2. Step 2: Convert to fraction form
    21,456.61/32,132.95 = 10,898.86/x
  3. Step 3: Cross multiply
    21,456.61x = 32,132.95 × 10,898.86
  4. Step 4: Simplify right side
    21,456.61x = 350,212,523.44
  5. Step 5: Solve for x
    x = 350,212,523.44/21,456.61
  6. Step 6: Final answer
    x = 16,321.89

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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.