Home / 28,348.38-39,120.81-15,773.13

Finding the Fourth Proportional to 28,348.38, 39,120.81 and 15,773.13

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Solution

The fourth proportional to 28,348.38, 39,120.81 and 15,773.13 is: 21,766.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,348.38 : 39,120.81 = 15,773.13 : x
  2. Step 2: Convert to fraction form
    28,348.38/39,120.81 = 15,773.13/x
  3. Step 3: Cross multiply
    28,348.38x = 39,120.81 × 15,773.13
  4. Step 4: Simplify right side
    28,348.38x = 617,057,621.84
  5. Step 5: Solve for x
    x = 617,057,621.84/28,348.38
  6. Step 6: Final answer
    x = 21,766.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.