Home / 27,926.71-38,540.78-15,351.46

Finding the Fourth Proportional to 27,926.71, 38,540.78 and 15,351.46

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Solution

The fourth proportional to 27,926.71, 38,540.78 and 15,351.46 is: 21,186.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,926.71 : 38,540.78 = 15,351.46 : x
  2. Step 2: Convert to fraction form
    27,926.71/38,540.78 = 15,351.46/x
  3. Step 3: Cross multiply
    27,926.71x = 38,540.78 × 15,351.46
  4. Step 4: Simplify right side
    27,926.71x = 591,657,242.54
  5. Step 5: Solve for x
    x = 591,657,242.54/27,926.71
  6. Step 6: Final answer
    x = 21,186.07

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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.