Home / 42,426.57-63,647.66-13,965.12

Finding the Fourth Proportional to 42,426.57, 63,647.66 and 13,965.12

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Solution

The fourth proportional to 42,426.57, 63,647.66 and 13,965.12 is: 20,950.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,426.57 : 63,647.66 = 13,965.12 : x
  2. Step 2: Convert to fraction form
    42,426.57/63,647.66 = 13,965.12/x
  3. Step 3: Cross multiply
    42,426.57x = 63,647.66 × 13,965.12
  4. Step 4: Simplify right side
    42,426.57x = 888,847,209.62
  5. Step 5: Solve for x
    x = 888,847,209.62/42,426.57
  6. Step 6: Final answer
    x = 20,950.25

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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.