Home / 27,921.68-38,531.88-15,346.43

Finding the Fourth Proportional to 27,921.68, 38,531.88 and 15,346.43

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Solution

The fourth proportional to 27,921.68, 38,531.88 and 15,346.43 is: 21,178.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.68 : 38,531.88 = 15,346.43 : x
  2. Step 2: Convert to fraction form
    27,921.68/38,531.88 = 15,346.43/x
  3. Step 3: Cross multiply
    27,921.68x = 38,531.88 × 15,346.43
  4. Step 4: Simplify right side
    27,921.68x = 591,326,606.53
  5. Step 5: Solve for x
    x = 591,326,606.53/27,921.68
  6. Step 6: Final answer
    x = 21,178.05

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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.