Home / 28,747.53-43,114.82-7,972.65

Finding the Fourth Proportional to 28,747.53, 43,114.82 and 7,972.65

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Solution

The fourth proportional to 28,747.53, 43,114.82 and 7,972.65 is: 11,957.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.53 : 43,114.82 = 7,972.65 : x
  2. Step 2: Convert to fraction form
    28,747.53/43,114.82 = 7,972.65/x
  3. Step 3: Cross multiply
    28,747.53x = 43,114.82 × 7,972.65
  4. Step 4: Simplify right side
    28,747.53x = 343,739,329.81
  5. Step 5: Solve for x
    x = 343,739,329.81/28,747.53
  6. Step 6: Final answer
    x = 11,957.18

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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.