Home / 42,238.26-63,357.39-12,655.44

Finding the Fourth Proportional to 42,238.26, 63,357.39 and 12,655.44

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Solution

The fourth proportional to 42,238.26, 63,357.39 and 12,655.44 is: 18,983.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,238.26 : 63,357.39 = 12,655.44 : x
  2. Step 2: Convert to fraction form
    42,238.26/63,357.39 = 12,655.44/x
  3. Step 3: Cross multiply
    42,238.26x = 63,357.39 × 12,655.44
  4. Step 4: Simplify right side
    42,238.26x = 801,815,647.70
  5. Step 5: Solve for x
    x = 801,815,647.70/42,238.26
  6. Step 6: Final answer
    x = 18,983.16

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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.