Home / 23,150.32-31,947.48-12,540.04

Finding the Fourth Proportional to 23,150.32, 31,947.48 and 12,540.04

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Solution

The fourth proportional to 23,150.32, 31,947.48 and 12,540.04 is: 17,305.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,150.32 : 31,947.48 = 12,540.04 : x
  2. Step 2: Convert to fraction form
    23,150.32/31,947.48 = 12,540.04/x
  3. Step 3: Cross multiply
    23,150.32x = 31,947.48 × 12,540.04
  4. Step 4: Simplify right side
    23,150.32x = 400,622,677.10
  5. Step 5: Solve for x
    x = 400,622,677.10/23,150.32
  6. Step 6: Final answer
    x = 17,305.28

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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.