Home / 27,279.49-37,642.63-15,342.57

Finding the Fourth Proportional to 27,279.49, 37,642.63 and 15,342.57

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Solution

The fourth proportional to 27,279.49, 37,642.63 and 15,342.57 is: 21,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,279.49 : 37,642.63 = 15,342.57 : x
  2. Step 2: Convert to fraction form
    27,279.49/37,642.63 = 15,342.57/x
  3. Step 3: Cross multiply
    27,279.49x = 37,642.63 × 15,342.57
  4. Step 4: Simplify right side
    27,279.49x = 577,534,685.76
  5. Step 5: Solve for x
    x = 577,534,685.76/27,279.49
  6. Step 6: Final answer
    x = 21,171.02

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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.