Home / 30,418.20-45,626.76-15,618.42

Finding the Fourth Proportional to 30,418.20, 45,626.76 and 15,618.42

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Solution

The fourth proportional to 30,418.20, 45,626.76 and 15,618.42 is: 23,427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,418.20 : 45,626.76 = 15,618.42 : x
  2. Step 2: Convert to fraction form
    30,418.20/45,626.76 = 15,618.42/x
  3. Step 3: Cross multiply
    30,418.20x = 45,626.76 × 15,618.42
  4. Step 4: Simplify right side
    30,418.20x = 712,617,900.92
  5. Step 5: Solve for x
    x = 712,617,900.92/30,418.20
  6. Step 6: Final answer
    x = 23,427.35

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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.