Home / 28,760.88-43,143.18-9,040.26

Finding the Fourth Proportional to 28,760.88, 43,143.18 and 9,040.26

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Solution

The fourth proportional to 28,760.88, 43,143.18 and 9,040.26 is: 13,560.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.88 : 43,143.18 = 9,040.26 : x
  2. Step 2: Convert to fraction form
    28,760.88/43,143.18 = 9,040.26/x
  3. Step 3: Cross multiply
    28,760.88x = 43,143.18 × 9,040.26
  4. Step 4: Simplify right side
    28,760.88x = 390,025,564.43
  5. Step 5: Solve for x
    x = 390,025,564.43/28,760.88
  6. Step 6: Final answer
    x = 13,560.97

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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.