Home / 28,179.33-42,275.48-8,458.26

Finding the Fourth Proportional to 28,179.33, 42,275.48 and 8,458.26

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Solution

The fourth proportional to 28,179.33, 42,275.48 and 8,458.26 is: 12,689.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179.33 : 42,275.48 = 8,458.26 : x
  2. Step 2: Convert to fraction form
    28,179.33/42,275.48 = 8,458.26/x
  3. Step 3: Cross multiply
    28,179.33x = 42,275.48 × 8,458.26
  4. Step 4: Simplify right side
    28,179.33x = 357,576,959.17
  5. Step 5: Solve for x
    x = 357,576,959.17/28,179.33
  6. Step 6: Final answer
    x = 12,689.34

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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.