Home / 42,471.44-63,708.60-11,309.84

Finding the Fourth Proportional to 42,471.44, 63,708.60 and 11,309.84

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Solution

The fourth proportional to 42,471.44, 63,708.60 and 11,309.84 is: 16,965.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,471.44 : 63,708.60 = 11,309.84 : x
  2. Step 2: Convert to fraction form
    42,471.44/63,708.60 = 11,309.84/x
  3. Step 3: Cross multiply
    42,471.44x = 63,708.60 × 11,309.84
  4. Step 4: Simplify right side
    42,471.44x = 720,534,072.62
  5. Step 5: Solve for x
    x = 720,534,072.62/42,471.44
  6. Step 6: Final answer
    x = 16,965.14

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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.