Home / 19,345.28-29,017.92-12,769.92

Finding the Fourth Proportional to 19,345.28, 29,017.92 and 12,769.92

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Solution

The fourth proportional to 19,345.28, 29,017.92 and 12,769.92 is: 19,154.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345.28 : 29,017.92 = 12,769.92 : x
  2. Step 2: Convert to fraction form
    19,345.28/29,017.92 = 12,769.92/x
  3. Step 3: Cross multiply
    19,345.28x = 29,017.92 × 12,769.92
  4. Step 4: Simplify right side
    19,345.28x = 370,556,516.97
  5. Step 5: Solve for x
    x = 370,556,516.97/19,345.28
  6. Step 6: Final answer
    x = 19,154.88

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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.