Home / 23,188.08-31,999.55-13,116.30

Finding the Fourth Proportional to 23,188.08, 31,999.55 and 13,116.30

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Solution

The fourth proportional to 23,188.08, 31,999.55 and 13,116.30 is: 18,100.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,188.08 : 31,999.55 = 13,116.30 : x
  2. Step 2: Convert to fraction form
    23,188.08/31,999.55 = 13,116.30/x
  3. Step 3: Cross multiply
    23,188.08x = 31,999.55 × 13,116.30
  4. Step 4: Simplify right side
    23,188.08x = 419,715,765.86
  5. Step 5: Solve for x
    x = 419,715,765.86/23,188.08
  6. Step 6: Final answer
    x = 18,100.50

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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.