Home / 23,187.92-31,999.08-13,116.20

Finding the Fourth Proportional to 23,187.92, 31,999.08 and 13,116.20

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Solution

The fourth proportional to 23,187.92, 31,999.08 and 13,116.20 is: 18,100.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,187.92 : 31,999.08 = 13,116.20 : x
  2. Step 2: Convert to fraction form
    23,187.92/31,999.08 = 13,116.20/x
  3. Step 3: Cross multiply
    23,187.92x = 31,999.08 × 13,116.20
  4. Step 4: Simplify right side
    23,187.92x = 419,706,333.10
  5. Step 5: Solve for x
    x = 419,706,333.10/23,187.92
  6. Step 6: Final answer
    x = 18,100.21

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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.