Home / 20,432.82-28,132.11-17,436.63

Finding the Fourth Proportional to 20,432.82, 28,132.11 and 17,436.63

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Solution

The fourth proportional to 20,432.82, 28,132.11 and 17,436.63 is: 24,006.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,432.82 : 28,132.11 = 17,436.63 : x
  2. Step 2: Convert to fraction form
    20,432.82/28,132.11 = 17,436.63/x
  3. Step 3: Cross multiply
    20,432.82x = 28,132.11 × 17,436.63
  4. Step 4: Simplify right side
    20,432.82x = 490,529,193.19
  5. Step 5: Solve for x
    x = 490,529,193.19/20,432.82
  6. Step 6: Final answer
    x = 24,006.93

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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.