Home / 23,188.38-31,975.75-13,755.12

Finding the Fourth Proportional to 23,188.38, 31,975.75 and 13,755.12

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Solution

The fourth proportional to 23,188.38, 31,975.75 and 13,755.12 is: 18,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,188.38 : 31,975.75 = 13,755.12 : x
  2. Step 2: Convert to fraction form
    23,188.38/31,975.75 = 13,755.12/x
  3. Step 3: Cross multiply
    23,188.38x = 31,975.75 × 13,755.12
  4. Step 4: Simplify right side
    23,188.38x = 439,830,118.46
  5. Step 5: Solve for x
    x = 439,830,118.46/23,188.38
  6. Step 6: Final answer
    x = 18,967.70

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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.