Home / 27,733.80-38,272.63-15,158.55

Finding the Fourth Proportional to 27,733.80, 38,272.63 and 15,158.55

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Solution

The fourth proportional to 27,733.80, 38,272.63 and 15,158.55 is: 20,918.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,733.80 : 38,272.63 = 15,158.55 : x
  2. Step 2: Convert to fraction form
    27,733.80/38,272.63 = 15,158.55/x
  3. Step 3: Cross multiply
    27,733.80x = 38,272.63 × 15,158.55
  4. Step 4: Simplify right side
    27,733.80x = 580,157,575.49
  5. Step 5: Solve for x
    x = 580,157,575.49/27,733.80
  6. Step 6: Final answer
    x = 20,918.79

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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.