Home / 23,015.28-31,772.94-13,586.88

Finding the Fourth Proportional to 23,015.28, 31,772.94 and 13,586.88

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Solution

The fourth proportional to 23,015.28, 31,772.94 and 13,586.88 is: 18,756.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,015.28 : 31,772.94 = 13,586.88 : x
  2. Step 2: Convert to fraction form
    23,015.28/31,772.94 = 13,586.88/x
  3. Step 3: Cross multiply
    23,015.28x = 31,772.94 × 13,586.88
  4. Step 4: Simplify right side
    23,015.28x = 431,695,123.03
  5. Step 5: Solve for x
    x = 431,695,123.03/23,015.28
  6. Step 6: Final answer
    x = 18,756.89

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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.