Home / 21,582.93-32,355.21-8,432.31

Finding the Fourth Proportional to 21,582.93, 32,355.21 and 8,432.31

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Solution

The fourth proportional to 21,582.93, 32,355.21 and 8,432.31 is: 12,640.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,582.93 : 32,355.21 = 8,432.31 : x
  2. Step 2: Convert to fraction form
    21,582.93/32,355.21 = 8,432.31/x
  3. Step 3: Cross multiply
    21,582.93x = 32,355.21 × 8,432.31
  4. Step 4: Simplify right side
    21,582.93x = 272,829,160.84
  5. Step 5: Solve for x
    x = 272,829,160.84/21,582.93
  6. Step 6: Final answer
    x = 12,640.97

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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.