Home / 42,038.92-63,067.61-12,459.07

Finding the Fourth Proportional to 42,038.92, 63,067.61 and 12,459.07

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Solution

The fourth proportional to 42,038.92, 63,067.61 and 12,459.07 is: 18,691.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,038.92 : 63,067.61 = 12,459.07 : x
  2. Step 2: Convert to fraction form
    42,038.92/63,067.61 = 12,459.07/x
  3. Step 3: Cross multiply
    42,038.92x = 63,067.61 × 12,459.07
  4. Step 4: Simplify right side
    42,038.92x = 785,763,767.72
  5. Step 5: Solve for x
    x = 785,763,767.72/42,038.92
  6. Step 6: Final answer
    x = 18,691.34

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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.