Home / 30,360.28-45,540.82-10,639.38

Finding the Fourth Proportional to 30,360.28, 45,540.82 and 10,639.38

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Solution

The fourth proportional to 30,360.28, 45,540.82 and 10,639.38 is: 15,959.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,360.28 : 45,540.82 = 10,639.38 : x
  2. Step 2: Convert to fraction form
    30,360.28/45,540.82 = 10,639.38/x
  3. Step 3: Cross multiply
    30,360.28x = 45,540.82 × 10,639.38
  4. Step 4: Simplify right side
    30,360.28x = 484,526,089.49
  5. Step 5: Solve for x
    x = 484,526,089.49/30,360.28
  6. Step 6: Final answer
    x = 15,959.21

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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.