Home / 42,655.06-63,986.43-11,489.62

Finding the Fourth Proportional to 42,655.06, 63,986.43 and 11,489.62

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Solution

The fourth proportional to 42,655.06, 63,986.43 and 11,489.62 is: 17,235.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,655.06 : 63,986.43 = 11,489.62 : x
  2. Step 2: Convert to fraction form
    42,655.06/63,986.43 = 11,489.62/x
  3. Step 3: Cross multiply
    42,655.06x = 63,986.43 × 11,489.62
  4. Step 4: Simplify right side
    42,655.06x = 735,179,765.86
  5. Step 5: Solve for x
    x = 735,179,765.86/42,655.06
  6. Step 6: Final answer
    x = 17,235.46

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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.