Home / 23,164.92-31,972.14-15,611.40

Finding the Fourth Proportional to 23,164.92, 31,972.14 and 15,611.40

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Solution

The fourth proportional to 23,164.92, 31,972.14 and 15,611.40 is: 21,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,164.92 : 31,972.14 = 15,611.40 : x
  2. Step 2: Convert to fraction form
    23,164.92/31,972.14 = 15,611.40/x
  3. Step 3: Cross multiply
    23,164.92x = 31,972.14 × 15,611.40
  4. Step 4: Simplify right side
    23,164.92x = 499,129,866.40
  5. Step 5: Solve for x
    x = 499,129,866.40/23,164.92
  6. Step 6: Final answer
    x = 21,546.80

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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.