Home / 23,156.40-31,947.20-15,203.04

Finding the Fourth Proportional to 23,156.40, 31,947.20 and 15,203.04

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Solution

The fourth proportional to 23,156.40, 31,947.20 and 15,203.04 is: 20,974.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,156.40 : 31,947.20 = 15,203.04 : x
  2. Step 2: Convert to fraction form
    23,156.40/31,947.20 = 15,203.04/x
  3. Step 3: Cross multiply
    23,156.40x = 31,947.20 × 15,203.04
  4. Step 4: Simplify right side
    23,156.40x = 485,694,559.49
  5. Step 5: Solve for x
    x = 485,694,559.49/23,156.40
  6. Step 6: Final answer
    x = 20,974.53

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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.