Home / 42,191.20-63,290.04-12,606.76

Finding the Fourth Proportional to 42,191.20, 63,290.04 and 12,606.76

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Solution

The fourth proportional to 42,191.20, 63,290.04 and 12,606.76 is: 18,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,191.20 : 63,290.04 = 12,606.76 : x
  2. Step 2: Convert to fraction form
    42,191.20/63,290.04 = 12,606.76/x
  3. Step 3: Cross multiply
    42,191.20x = 63,290.04 × 12,606.76
  4. Step 4: Simplify right side
    42,191.20x = 797,882,344.67
  5. Step 5: Solve for x
    x = 797,882,344.67/42,191.20
  6. Step 6: Final answer
    x = 18,911.11

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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.