Home / 23,100.40-31,882.14-15,165.64

Finding the Fourth Proportional to 23,100.40, 31,882.14 and 15,165.64

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Solution

The fourth proportional to 23,100.40, 31,882.14 and 15,165.64 is: 20,930.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,100.40 : 31,882.14 = 15,165.64 : x
  2. Step 2: Convert to fraction form
    23,100.40/31,882.14 = 15,165.64/x
  3. Step 3: Cross multiply
    23,100.40x = 31,882.14 × 15,165.64
  4. Step 4: Simplify right side
    23,100.40x = 483,513,057.67
  5. Step 5: Solve for x
    x = 483,513,057.67/23,100.40
  6. Step 6: Final answer
    x = 20,930.94

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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.