Home / 27,279.86-37,645.83-15,343.19

Finding the Fourth Proportional to 27,279.86, 37,645.83 and 15,343.19

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Solution

The fourth proportional to 27,279.86, 37,645.83 and 15,343.19 is: 21,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,279.86 : 37,645.83 = 15,343.19 : x
  2. Step 2: Convert to fraction form
    27,279.86/37,645.83 = 15,343.19/x
  3. Step 3: Cross multiply
    27,279.86x = 37,645.83 × 15,343.19
  4. Step 4: Simplify right side
    27,279.86x = 577,607,160.76
  5. Step 5: Solve for x
    x = 577,607,160.76/27,279.86
  6. Step 6: Final answer
    x = 21,173.39

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Half scale
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Double scale
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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.