Home / 28,517.54-39,362.63-18,446.40

Finding the Fourth Proportional to 28,517.54, 39,362.63 and 18,446.40

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Solution

The fourth proportional to 28,517.54, 39,362.63 and 18,446.40 is: 25,461.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.54 : 39,362.63 = 18,446.40 : x
  2. Step 2: Convert to fraction form
    28,517.54/39,362.63 = 18,446.40/x
  3. Step 3: Cross multiply
    28,517.54x = 39,362.63 × 18,446.40
  4. Step 4: Simplify right side
    28,517.54x = 726,098,725.80
  5. Step 5: Solve for x
    x = 726,098,725.80/28,517.54
  6. Step 6: Final answer
    x = 25,461.48

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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.