Home / 13,953.32-20,931.05-3,957.89

Finding the Fourth Proportional to 13,953.32, 20,931.05 and 3,957.89

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Solution

The fourth proportional to 13,953.32, 20,931.05 and 3,957.89 is: 5,937.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.32 : 20,931.05 = 3,957.89 : x
  2. Step 2: Convert to fraction form
    13,953.32/20,931.05 = 3,957.89/x
  3. Step 3: Cross multiply
    13,953.32x = 20,931.05 × 3,957.89
  4. Step 4: Simplify right side
    13,953.32x = 82,842,793.48
  5. Step 5: Solve for x
    x = 82,842,793.48/13,953.32
  6. Step 6: Final answer
    x = 5,937.14

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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.