Home / 19,742.60-29,565.30-9,342.20

Finding the Fourth Proportional to 19,742.60, 29,565.30 and 9,342.20

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Solution

The fourth proportional to 19,742.60, 29,565.30 and 9,342.20 is: 13,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,742.60 : 29,565.30 = 9,342.20 : x
  2. Step 2: Convert to fraction form
    19,742.60/29,565.30 = 9,342.20/x
  3. Step 3: Cross multiply
    19,742.60x = 29,565.30 × 9,342.20
  4. Step 4: Simplify right side
    19,742.60x = 276,204,945.66
  5. Step 5: Solve for x
    x = 276,204,945.66/19,742.60
  6. Step 6: Final answer
    x = 13,990.30

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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.