Home / 23,107.12-31,888.21-13,035.76

Finding the Fourth Proportional to 23,107.12, 31,888.21 and 13,035.76

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Solution

The fourth proportional to 23,107.12, 31,888.21 and 13,035.76 is: 17,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,107.12 : 31,888.21 = 13,035.76 : x
  2. Step 2: Convert to fraction form
    23,107.12/31,888.21 = 13,035.76/x
  3. Step 3: Cross multiply
    23,107.12x = 31,888.21 × 13,035.76
  4. Step 4: Simplify right side
    23,107.12x = 415,687,017.54
  5. Step 5: Solve for x
    x = 415,687,017.54/23,107.12
  6. Step 6: Final answer
    x = 17,989.56

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.