Home / 27,279.09-37,645.17-15,342.45

Finding the Fourth Proportional to 27,279.09, 37,645.17 and 15,342.45

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Solution

The fourth proportional to 27,279.09, 37,645.17 and 15,342.45 is: 21,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,279.09 : 37,645.17 = 15,342.45 : x
  2. Step 2: Convert to fraction form
    27,279.09/37,645.17 = 15,342.45/x
  3. Step 3: Cross multiply
    27,279.09x = 37,645.17 × 15,342.45
  4. Step 4: Simplify right side
    27,279.09x = 577,569,138.47
  5. Step 5: Solve for x
    x = 577,569,138.47/27,279.09
  6. Step 6: Final answer
    x = 21,172.60

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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.