Home / 22,418.11-30,903.18-18,432.30

Finding the Fourth Proportional to 22,418.11, 30,903.18 and 18,432.30

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Solution

The fourth proportional to 22,418.11, 30,903.18 and 18,432.30 is: 25,408.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,418.11 : 30,903.18 = 18,432.30 : x
  2. Step 2: Convert to fraction form
    22,418.11/30,903.18 = 18,432.30/x
  3. Step 3: Cross multiply
    22,418.11x = 30,903.18 × 18,432.30
  4. Step 4: Simplify right side
    22,418.11x = 569,616,530.20
  5. Step 5: Solve for x
    x = 569,616,530.20/22,418.11
  6. Step 6: Final answer
    x = 25,408.77

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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.