Home / 21,781.53-32,672.33-14,432.67

Finding the Fourth Proportional to 21,781.53, 32,672.33 and 14,432.67

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Solution

The fourth proportional to 21,781.53, 32,672.33 and 14,432.67 is: 21,649.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781.53 : 32,672.33 = 14,432.67 : x
  2. Step 2: Convert to fraction form
    21,781.53/32,672.33 = 14,432.67/x
  3. Step 3: Cross multiply
    21,781.53x = 32,672.33 × 14,432.67
  4. Step 4: Simplify right side
    21,781.53x = 471,548,884.86
  5. Step 5: Solve for x
    x = 471,548,884.86/21,781.53
  6. Step 6: Final answer
    x = 21,649.02

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1.5x scale

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.