Home / 28,760.40-39,689.92-17,429.52

Finding the Fourth Proportional to 28,760.40, 39,689.92 and 17,429.52

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Solution

The fourth proportional to 28,760.40, 39,689.92 and 17,429.52 is: 24,053.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.40 : 39,689.92 = 17,429.52 : x
  2. Step 2: Convert to fraction form
    28,760.40/39,689.92 = 17,429.52/x
  3. Step 3: Cross multiply
    28,760.40x = 39,689.92 × 17,429.52
  4. Step 4: Simplify right side
    28,760.40x = 691,776,254.44
  5. Step 5: Solve for x
    x = 691,776,254.44/28,760.40
  6. Step 6: Final answer
    x = 24,053.08

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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.