Home / 28,996.11-40,034.12-18,110.83

Finding the Fourth Proportional to 28,996.11, 40,034.12 and 18,110.83

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Solution

The fourth proportional to 28,996.11, 40,034.12 and 18,110.83 is: 25,005.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996.11 : 40,034.12 = 18,110.83 : x
  2. Step 2: Convert to fraction form
    28,996.11/40,034.12 = 18,110.83/x
  3. Step 3: Cross multiply
    28,996.11x = 40,034.12 × 18,110.83
  4. Step 4: Simplify right side
    28,996.11x = 725,051,141.52
  5. Step 5: Solve for x
    x = 725,051,141.52/28,996.11
  6. Step 6: Final answer
    x = 25,005.12

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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.