Home / 40,139.80-60,227.70-13,863.40

Finding the Fourth Proportional to 40,139.80, 60,227.70 and 13,863.40

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Solution

The fourth proportional to 40,139.80, 60,227.70 and 13,863.40 is: 20,801.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.80 : 60,227.70 = 13,863.40 : x
  2. Step 2: Convert to fraction form
    40,139.80/60,227.70 = 13,863.40/x
  3. Step 3: Cross multiply
    40,139.80x = 60,227.70 × 13,863.40
  4. Step 4: Simplify right side
    40,139.80x = 834,960,696.18
  5. Step 5: Solve for x
    x = 834,960,696.18/40,139.80
  6. Step 6: Final answer
    x = 20,801.32

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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.