Home / 42,002.20-63,010.16-12,423.03

Finding the Fourth Proportional to 42,002.20, 63,010.16 and 12,423.03

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Solution

The fourth proportional to 42,002.20, 63,010.16 and 12,423.03 is: 18,636.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,002.20 : 63,010.16 = 12,423.03 : x
  2. Step 2: Convert to fraction form
    42,002.20/63,010.16 = 12,423.03/x
  3. Step 3: Cross multiply
    42,002.20x = 63,010.16 × 12,423.03
  4. Step 4: Simplify right side
    42,002.20x = 782,777,107.98
  5. Step 5: Solve for x
    x = 782,777,107.98/42,002.20
  6. Step 6: Final answer
    x = 18,636.57

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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.