Home / 27,561.39-37,988.45-21,098.80

Finding the Fourth Proportional to 27,561.39, 37,988.45 and 21,098.80

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Solution

The fourth proportional to 27,561.39, 37,988.45 and 21,098.80 is: 29,080.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,561.39 : 37,988.45 = 21,098.80 : x
  2. Step 2: Convert to fraction form
    27,561.39/37,988.45 = 21,098.80/x
  3. Step 3: Cross multiply
    27,561.39x = 37,988.45 × 21,098.80
  4. Step 4: Simplify right side
    27,561.39x = 801,510,708.86
  5. Step 5: Solve for x
    x = 801,510,708.86/27,561.39
  6. Step 6: Final answer
    x = 29,080.92

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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.