Home / 42,161.92-63,251.18-12,579.10

Finding the Fourth Proportional to 42,161.92, 63,251.18 and 12,579.10

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Solution

The fourth proportional to 42,161.92, 63,251.18 and 12,579.10 is: 18,871.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,161.92 : 63,251.18 = 12,579.10 : x
  2. Step 2: Convert to fraction form
    42,161.92/63,251.18 = 12,579.10/x
  3. Step 3: Cross multiply
    42,161.92x = 63,251.18 × 12,579.10
  4. Step 4: Simplify right side
    42,161.92x = 795,642,918.34
  5. Step 5: Solve for x
    x = 795,642,918.34/42,161.92
  6. Step 6: Final answer
    x = 18,871.13

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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.