Home / 23,154.12-31,938.30-13,716

Finding the Fourth Proportional to 23,154.12, 31,938.30 and 13,716

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Solution

The fourth proportional to 23,154.12, 31,938.30 and 13,716 is: 18,919.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,154.12 : 31,938.30 = 13,716 : x
  2. Step 2: Convert to fraction form
    23,154.12/31,938.30 = 13,716/x
  3. Step 3: Cross multiply
    23,154.12x = 31,938.30 × 13,716
  4. Step 4: Simplify right side
    23,154.12x = 438,065,722.80
  5. Step 5: Solve for x
    x = 438,065,722.80/23,154.12
  6. Step 6: Final answer
    x = 18,919.56

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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.