Home / 27,748.27-38,293.65-15,811.30

Finding the Fourth Proportional to 27,748.27, 38,293.65 and 15,811.30

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Solution

The fourth proportional to 27,748.27, 38,293.65 and 15,811.30 is: 21,820.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,748.27 : 38,293.65 = 15,811.30 : x
  2. Step 2: Convert to fraction form
    27,748.27/38,293.65 = 15,811.30/x
  3. Step 3: Cross multiply
    27,748.27x = 38,293.65 × 15,811.30
  4. Step 4: Simplify right side
    27,748.27x = 605,472,117.72
  5. Step 5: Solve for x
    x = 605,472,117.72/27,748.27
  6. Step 6: Final answer
    x = 21,820.18

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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.