Home / 27,749.76-38,325.12-18,839.04

Finding the Fourth Proportional to 27,749.76, 38,325.12 and 18,839.04

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Solution

The fourth proportional to 27,749.76, 38,325.12 and 18,839.04 is: 26,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,749.76 : 38,325.12 = 18,839.04 : x
  2. Step 2: Convert to fraction form
    27,749.76/38,325.12 = 18,839.04/x
  3. Step 3: Cross multiply
    27,749.76x = 38,325.12 × 18,839.04
  4. Step 4: Simplify right side
    27,749.76x = 722,008,468.68
  5. Step 5: Solve for x
    x = 722,008,468.68/27,749.76
  6. Step 6: Final answer
    x = 26,018.55

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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.