Home / 39,440.28-54,429.80-21,536.95

Finding the Fourth Proportional to 39,440.28, 54,429.80 and 21,536.95

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Solution

The fourth proportional to 39,440.28, 54,429.80 and 21,536.95 is: 29,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,440.28 : 54,429.80 = 21,536.95 : x
  2. Step 2: Convert to fraction form
    39,440.28/54,429.80 = 21,536.95/x
  3. Step 3: Cross multiply
    39,440.28x = 54,429.80 × 21,536.95
  4. Step 4: Simplify right side
    39,440.28x = 1,172,251,881.11
  5. Step 5: Solve for x
    x = 1,172,251,881.11/39,440.28
  6. Step 6: Final answer
    x = 29,722.20

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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.