Home / 28,121.11-42,180.61-7,061.29

Finding the Fourth Proportional to 28,121.11, 42,180.61 and 7,061.29

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Solution

The fourth proportional to 28,121.11, 42,180.61 and 7,061.29 is: 10,591.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,121.11 : 42,180.61 = 7,061.29 : x
  2. Step 2: Convert to fraction form
    28,121.11/42,180.61 = 7,061.29/x
  3. Step 3: Cross multiply
    28,121.11x = 42,180.61 × 7,061.29
  4. Step 4: Simplify right side
    28,121.11x = 297,849,519.59
  5. Step 5: Solve for x
    x = 297,849,519.59/28,121.11
  6. Step 6: Final answer
    x = 10,591.67

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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.