Home / 27,851.14-38,434.56-15,275.89

Finding the Fourth Proportional to 27,851.14, 38,434.56 and 15,275.89

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Solution

The fourth proportional to 27,851.14, 38,434.56 and 15,275.89 is: 21,080.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,851.14 : 38,434.56 = 15,275.89 : x
  2. Step 2: Convert to fraction form
    27,851.14/38,434.56 = 15,275.89/x
  3. Step 3: Cross multiply
    27,851.14x = 38,434.56 × 15,275.89
  4. Step 4: Simplify right side
    27,851.14x = 587,122,110.76
  5. Step 5: Solve for x
    x = 587,122,110.76/27,851.14
  6. Step 6: Final answer
    x = 21,080.72

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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.