Home / 28,292.73-42,444.30-9,318.48

Finding the Fourth Proportional to 28,292.73, 42,444.30 and 9,318.48

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Solution

The fourth proportional to 28,292.73, 42,444.30 and 9,318.48 is: 13,979.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.73 : 42,444.30 = 9,318.48 : x
  2. Step 2: Convert to fraction form
    28,292.73/42,444.30 = 9,318.48/x
  3. Step 3: Cross multiply
    28,292.73x = 42,444.30 × 9,318.48
  4. Step 4: Simplify right side
    28,292.73x = 395,516,236.44
  5. Step 5: Solve for x
    x = 395,516,236.44/28,292.73
  6. Step 6: Final answer
    x = 13,979.43

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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.