Home / 19,345.20-29,017.80-8,951.28

Finding the Fourth Proportional to 19,345.20, 29,017.80 and 8,951.28

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Solution

The fourth proportional to 19,345.20, 29,017.80 and 8,951.28 is: 13,426.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345.20 : 29,017.80 = 8,951.28 : x
  2. Step 2: Convert to fraction form
    19,345.20/29,017.80 = 8,951.28/x
  3. Step 3: Cross multiply
    19,345.20x = 29,017.80 × 8,951.28
  4. Step 4: Simplify right side
    19,345.20x = 259,746,452.78
  5. Step 5: Solve for x
    x = 259,746,452.78/19,345.20
  6. Step 6: Final answer
    x = 13,426.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.