Home / 27,279.88-37,643.29-15,340.68

Finding the Fourth Proportional to 27,279.88, 37,643.29 and 15,340.68

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Solution

The fourth proportional to 27,279.88, 37,643.29 and 15,340.68 is: 21,168.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,279.88 : 37,643.29 = 15,340.68 : x
  2. Step 2: Convert to fraction form
    27,279.88/37,643.29 = 15,340.68/x
  3. Step 3: Cross multiply
    27,279.88x = 37,643.29 × 15,340.68
  4. Step 4: Simplify right side
    27,279.88x = 577,473,666.04
  5. Step 5: Solve for x
    x = 577,473,666.04/27,279.88
  6. Step 6: Final answer
    x = 21,168.48

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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.