Home / 28,207.80-42,305.72-18,182.52

Finding the Fourth Proportional to 28,207.80, 42,305.72 and 18,182.52

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Solution

The fourth proportional to 28,207.80, 42,305.72 and 18,182.52 is: 27,269.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.80 : 42,305.72 = 18,182.52 : x
  2. Step 2: Convert to fraction form
    28,207.80/42,305.72 = 18,182.52/x
  3. Step 3: Cross multiply
    28,207.80x = 42,305.72 × 18,182.52
  4. Step 4: Simplify right side
    28,207.80x = 769,224,600.01
  5. Step 5: Solve for x
    x = 769,224,600.01/28,207.80
  6. Step 6: Final answer
    x = 27,269.93

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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.