Home / 21,582.24-32,349.60-8,432.16

Finding the Fourth Proportional to 21,582.24, 32,349.60 and 8,432.16

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Solution

The fourth proportional to 21,582.24, 32,349.60 and 8,432.16 is: 12,638.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,582.24 : 32,349.60 = 8,432.16 : x
  2. Step 2: Convert to fraction form
    21,582.24/32,349.60 = 8,432.16/x
  3. Step 3: Cross multiply
    21,582.24x = 32,349.60 × 8,432.16
  4. Step 4: Simplify right side
    21,582.24x = 272,777,003.14
  5. Step 5: Solve for x
    x = 272,777,003.14/21,582.24
  6. Step 6: Final answer
    x = 12,638.96

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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.