Home / 39,343.61-54,294.19-21,438.62

Finding the Fourth Proportional to 39,343.61, 54,294.19 and 21,438.62

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Solution

The fourth proportional to 39,343.61, 54,294.19 and 21,438.62 is: 29,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,343.61 : 54,294.19 = 21,438.62 : x
  2. Step 2: Convert to fraction form
    39,343.61/54,294.19 = 21,438.62/x
  3. Step 3: Cross multiply
    39,343.61x = 54,294.19 × 21,438.62
  4. Step 4: Simplify right side
    39,343.61x = 1,163,992,589.76
  5. Step 5: Solve for x
    x = 1,163,992,589.76/39,343.61
  6. Step 6: Final answer
    x = 29,585.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.