Home / 28,717.11-43,070.81-7,935.75

Finding the Fourth Proportional to 28,717.11, 43,070.81 and 7,935.75

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Solution

The fourth proportional to 28,717.11, 43,070.81 and 7,935.75 is: 11,902.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.11 : 43,070.81 = 7,935.75 : x
  2. Step 2: Convert to fraction form
    28,717.11/43,070.81 = 7,935.75/x
  3. Step 3: Cross multiply
    28,717.11x = 43,070.81 × 7,935.75
  4. Step 4: Simplify right side
    28,717.11x = 341,799,140.78
  5. Step 5: Solve for x
    x = 341,799,140.78/28,717.11
  6. Step 6: Final answer
    x = 11,902.28

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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.