Home / 21,432.23-29,575.62-12,000.59

Finding the Fourth Proportional to 21,432.23, 29,575.62 and 12,000.59

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Solution

The fourth proportional to 21,432.23, 29,575.62 and 12,000.59 is: 16,560.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432.23 : 29,575.62 = 12,000.59 : x
  2. Step 2: Convert to fraction form
    21,432.23/29,575.62 = 12,000.59/x
  3. Step 3: Cross multiply
    21,432.23x = 29,575.62 × 12,000.59
  4. Step 4: Simplify right side
    21,432.23x = 354,924,741.74
  5. Step 5: Solve for x
    x = 354,924,741.74/21,432.23
  6. Step 6: Final answer
    x = 16,560.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.