Home / 28,097.38-42,146.07-7,320.88

Finding the Fourth Proportional to 28,097.38, 42,146.07 and 7,320.88

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Solution

The fourth proportional to 28,097.38, 42,146.07 and 7,320.88 is: 10,981.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,097.38 : 42,146.07 = 7,320.88 : x
  2. Step 2: Convert to fraction form
    28,097.38/42,146.07 = 7,320.88/x
  3. Step 3: Cross multiply
    28,097.38x = 42,146.07 × 7,320.88
  4. Step 4: Simplify right side
    28,097.38x = 308,546,073.61
  5. Step 5: Solve for x
    x = 308,546,073.61/28,097.38
  6. Step 6: Final answer
    x = 10,981.31

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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.