Home / 42,773.57-64,157.28-13,188.32

Finding the Fourth Proportional to 42,773.57, 64,157.28 and 13,188.32

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Solution

The fourth proportional to 42,773.57, 64,157.28 and 13,188.32 is: 19,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,773.57 : 64,157.28 = 13,188.32 : x
  2. Step 2: Convert to fraction form
    42,773.57/64,157.28 = 13,188.32/x
  3. Step 3: Cross multiply
    42,773.57x = 64,157.28 × 13,188.32
  4. Step 4: Simplify right side
    42,773.57x = 846,126,738.97
  5. Step 5: Solve for x
    x = 846,126,738.97/42,773.57
  6. Step 6: Final answer
    x = 19,781.53

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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.