Home / 18,301.40-25,236.94-15,657.56

Finding the Fourth Proportional to 18,301.40, 25,236.94 and 15,657.56

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Solution

The fourth proportional to 18,301.40, 25,236.94 and 15,657.56 is: 21,591.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301.40 : 25,236.94 = 15,657.56 : x
  2. Step 2: Convert to fraction form
    18,301.40/25,236.94 = 15,657.56/x
  3. Step 3: Cross multiply
    18,301.40x = 25,236.94 × 15,657.56
  4. Step 4: Simplify right side
    18,301.40x = 395,148,902.27
  5. Step 5: Solve for x
    x = 395,148,902.27/18,301.40
  6. Step 6: Final answer
    x = 21,591.18

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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.