Home / 42,199.77-63,290.24-12,613.76

Finding the Fourth Proportional to 42,199.77, 63,290.24 and 12,613.76

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Solution

The fourth proportional to 42,199.77, 63,290.24 and 12,613.76 is: 18,917.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,199.77 : 63,290.24 = 12,613.76 : x
  2. Step 2: Convert to fraction form
    42,199.77/63,290.24 = 12,613.76/x
  3. Step 3: Cross multiply
    42,199.77x = 63,290.24 × 12,613.76
  4. Step 4: Simplify right side
    42,199.77x = 798,327,518.18
  5. Step 5: Solve for x
    x = 798,327,518.18/42,199.77
  6. Step 6: Final answer
    x = 18,917.82

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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.