Home / 28,069.33-42,117.12-12,272.31

Finding the Fourth Proportional to 28,069.33, 42,117.12 and 12,272.31

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Solution

The fourth proportional to 28,069.33, 42,117.12 and 12,272.31 is: 18,414.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,069.33 : 42,117.12 = 12,272.31 : x
  2. Step 2: Convert to fraction form
    28,069.33/42,117.12 = 12,272.31/x
  3. Step 3: Cross multiply
    28,069.33x = 42,117.12 × 12,272.31
  4. Step 4: Simplify right side
    28,069.33x = 516,874,352.95
  5. Step 5: Solve for x
    x = 516,874,352.95/28,069.33
  6. Step 6: Final answer
    x = 18,414.21

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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.