Home / 42,575.13-63,862.70-12,993.12

Finding the Fourth Proportional to 42,575.13, 63,862.70 and 12,993.12

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Solution

The fourth proportional to 42,575.13, 63,862.70 and 12,993.12 is: 19,489.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,575.13 : 63,862.70 = 12,993.12 : x
  2. Step 2: Convert to fraction form
    42,575.13/63,862.70 = 12,993.12/x
  3. Step 3: Cross multiply
    42,575.13x = 63,862.70 × 12,993.12
  4. Step 4: Simplify right side
    42,575.13x = 829,775,659.66
  5. Step 5: Solve for x
    x = 829,775,659.66/42,575.13
  6. Step 6: Final answer
    x = 19,489.68

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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.