Home / 26,729.06-36,881.06-18,118.65

Finding the Fourth Proportional to 26,729.06, 36,881.06 and 18,118.65

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Solution

The fourth proportional to 26,729.06, 36,881.06 and 18,118.65 is: 25,000.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,729.06 : 36,881.06 = 18,118.65 : x
  2. Step 2: Convert to fraction form
    26,729.06/36,881.06 = 18,118.65/x
  3. Step 3: Cross multiply
    26,729.06x = 36,881.06 × 18,118.65
  4. Step 4: Simplify right side
    26,729.06x = 668,235,063.07
  5. Step 5: Solve for x
    x = 668,235,063.07/26,729.06
  6. Step 6: Final answer
    x = 25,000.33

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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.