Home / 17,638.20-24,340.80-9,680.52

Finding the Fourth Proportional to 17,638.20, 24,340.80 and 9,680.52

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Solution

The fourth proportional to 17,638.20, 24,340.80 and 9,680.52 is: 13,359.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,638.20 : 24,340.80 = 9,680.52 : x
  2. Step 2: Convert to fraction form
    17,638.20/24,340.80 = 9,680.52/x
  3. Step 3: Cross multiply
    17,638.20x = 24,340.80 × 9,680.52
  4. Step 4: Simplify right side
    17,638.20x = 235,631,601.22
  5. Step 5: Solve for x
    x = 235,631,601.22/17,638.20
  6. Step 6: Final answer
    x = 13,359.16

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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.