Home / 28,162.13-42,077.70-27,180.90

Finding the Fourth Proportional to 28,162.13, 42,077.70 and 27,180.90

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Solution

The fourth proportional to 28,162.13, 42,077.70 and 27,180.90 is: 40,611.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,162.13 : 42,077.70 = 27,180.90 : x
  2. Step 2: Convert to fraction form
    28,162.13/42,077.70 = 27,180.90/x
  3. Step 3: Cross multiply
    28,162.13x = 42,077.70 × 27,180.90
  4. Step 4: Simplify right side
    28,162.13x = 1,143,709,755.93
  5. Step 5: Solve for x
    x = 1,143,709,755.93/28,162.13
  6. Step 6: Final answer
    x = 40,611.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.