Home / 32,436.80-48,628.16-13,731.20

Finding the Fourth Proportional to 32,436.80, 48,628.16 and 13,731.20

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Solution

The fourth proportional to 32,436.80, 48,628.16 and 13,731.20 is: 20,585.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,436.80 : 48,628.16 = 13,731.20 : x
  2. Step 2: Convert to fraction form
    32,436.80/48,628.16 = 13,731.20/x
  3. Step 3: Cross multiply
    32,436.80x = 48,628.16 × 13,731.20
  4. Step 4: Simplify right side
    32,436.80x = 667,722,990.59
  5. Step 5: Solve for x
    x = 667,722,990.59/32,436.80
  6. Step 6: Final answer
    x = 20,585.35

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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.