Home / 20,732.12-31,102.50-6,693.20

Finding the Fourth Proportional to 20,732.12, 31,102.50 and 6,693.20

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Solution

The fourth proportional to 20,732.12, 31,102.50 and 6,693.20 is: 10,041.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.12 : 31,102.50 = 6,693.20 : x
  2. Step 2: Convert to fraction form
    20,732.12/31,102.50 = 6,693.20/x
  3. Step 3: Cross multiply
    20,732.12x = 31,102.50 × 6,693.20
  4. Step 4: Simplify right side
    20,732.12x = 208,175,253
  5. Step 5: Solve for x
    x = 208,175,253/20,732.12
  6. Step 6: Final answer
    x = 10,041.19

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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.