Home / 25,517.70-38,200.95-18,972.90

Finding the Fourth Proportional to 25,517.70, 38,200.95 and 18,972.90

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Solution

The fourth proportional to 25,517.70, 38,200.95 and 18,972.90 is: 28,403.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,517.70 : 38,200.95 = 18,972.90 : x
  2. Step 2: Convert to fraction form
    25,517.70/38,200.95 = 18,972.90/x
  3. Step 3: Cross multiply
    25,517.70x = 38,200.95 × 18,972.90
  4. Step 4: Simplify right side
    25,517.70x = 724,782,804.26
  5. Step 5: Solve for x
    x = 724,782,804.26/25,517.70
  6. Step 6: Final answer
    x = 28,403.14

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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.