Home / 27,159.42-40,748.00-13,121.06

Finding the Fourth Proportional to 27,159.42, 40,748.00 and 13,121.06

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Solution

The fourth proportional to 27,159.42, 40,748.00 and 13,121.06 is: 19,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,159.42 : 40,748.00 = 13,121.06 : x
  2. Step 2: Convert to fraction form
    27,159.42/40,748.00 = 13,121.06/x
  3. Step 3: Cross multiply
    27,159.42x = 40,748.00 × 13,121.06
  4. Step 4: Simplify right side
    27,159.42x = 534,656,912.26
  5. Step 5: Solve for x
    x = 534,656,912.26/27,159.42
  6. Step 6: Final answer
    x = 19,685.87

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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.