Home / 27,279.89-37,646.10-15,343.22

Finding the Fourth Proportional to 27,279.89, 37,646.10 and 15,343.22

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Solution

The fourth proportional to 27,279.89, 37,646.10 and 15,343.22 is: 21,173.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,279.89 : 37,646.10 = 15,343.22 : x
  2. Step 2: Convert to fraction form
    27,279.89/37,646.10 = 15,343.22/x
  3. Step 3: Cross multiply
    27,279.89x = 37,646.10 × 15,343.22
  4. Step 4: Simplify right side
    27,279.89x = 577,612,488.56
  5. Step 5: Solve for x
    x = 577,612,488.56/27,279.89
  6. Step 6: Final answer
    x = 21,173.56

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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.