Home / 30,040.68-45,061.38-18,197.04

Finding the Fourth Proportional to 30,040.68, 45,061.38 and 18,197.04

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Solution

The fourth proportional to 30,040.68, 45,061.38 and 18,197.04 is: 27,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,040.68 : 45,061.38 = 18,197.04 : x
  2. Step 2: Convert to fraction form
    30,040.68/45,061.38 = 18,197.04/x
  3. Step 3: Cross multiply
    30,040.68x = 45,061.38 × 18,197.04
  4. Step 4: Simplify right side
    30,040.68x = 819,983,734.32
  5. Step 5: Solve for x
    x = 819,983,734.32/30,040.68
  6. Step 6: Final answer
    x = 27,295.78

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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.