Home / 23,191.12-31,989.18-13,753

Finding the Fourth Proportional to 23,191.12, 31,989.18 and 13,753

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Solution

The fourth proportional to 23,191.12, 31,989.18 and 13,753 is: 18,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,191.12 : 31,989.18 = 13,753 : x
  2. Step 2: Convert to fraction form
    23,191.12/31,989.18 = 13,753/x
  3. Step 3: Cross multiply
    23,191.12x = 31,989.18 × 13,753
  4. Step 4: Simplify right side
    23,191.12x = 439,947,192.54
  5. Step 5: Solve for x
    x = 439,947,192.54/23,191.12
  6. Step 6: Final answer
    x = 18,970.50

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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.