Home / 18,298.40-25,232.80-15,654.56

Finding the Fourth Proportional to 18,298.40, 25,232.80 and 15,654.56

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Solution

The fourth proportional to 18,298.40, 25,232.80 and 15,654.56 is: 21,587.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,298.40 : 25,232.80 = 15,654.56 : x
  2. Step 2: Convert to fraction form
    18,298.40/25,232.80 = 15,654.56/x
  3. Step 3: Cross multiply
    18,298.40x = 25,232.80 × 15,654.56
  4. Step 4: Simplify right side
    18,298.40x = 395,008,381.57
  5. Step 5: Solve for x
    x = 395,008,381.57/18,298.40
  6. Step 6: Final answer
    x = 21,587.04

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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.