Home / 18,432.21-25,438.28-10,881.03

Finding the Fourth Proportional to 18,432.21, 25,438.28 and 10,881.03

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Solution

The fourth proportional to 18,432.21, 25,438.28 and 10,881.03 is: 15,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,432.21 : 25,438.28 = 10,881.03 : x
  2. Step 2: Convert to fraction form
    18,432.21/25,438.28 = 10,881.03/x
  3. Step 3: Cross multiply
    18,432.21x = 25,438.28 × 10,881.03
  4. Step 4: Simplify right side
    18,432.21x = 276,794,633.42
  5. Step 5: Solve for x
    x = 276,794,633.42/18,432.21
  6. Step 6: Final answer
    x = 15,016.90

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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.