Home / 27,681.01-38,199.66-15,105.76

Finding the Fourth Proportional to 27,681.01, 38,199.66 and 15,105.76

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Solution

The fourth proportional to 27,681.01, 38,199.66 and 15,105.76 is: 20,845.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,681.01 : 38,199.66 = 15,105.76 : x
  2. Step 2: Convert to fraction form
    27,681.01/38,199.66 = 15,105.76/x
  3. Step 3: Cross multiply
    27,681.01x = 38,199.66 × 15,105.76
  4. Step 4: Simplify right side
    27,681.01x = 577,034,896.04
  5. Step 5: Solve for x
    x = 577,034,896.04/27,681.01
  6. Step 6: Final answer
    x = 20,845.88

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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.