Home / 28,576.56-39,429.28-17,247.92

Finding the Fourth Proportional to 28,576.56, 39,429.28 and 17,247.92

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Solution

The fourth proportional to 28,576.56, 39,429.28 and 17,247.92 is: 23,798.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,576.56 : 39,429.28 = 17,247.92 : x
  2. Step 2: Convert to fraction form
    28,576.56/39,429.28 = 17,247.92/x
  3. Step 3: Cross multiply
    28,576.56x = 39,429.28 × 17,247.92
  4. Step 4: Simplify right side
    28,576.56x = 680,073,067.10
  5. Step 5: Solve for x
    x = 680,073,067.10/28,576.56
  6. Step 6: Final answer
    x = 23,798.28

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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.