Home / 39,749.81-54,854.28-21,844.62

Finding the Fourth Proportional to 39,749.81, 54,854.28 and 21,844.62

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Solution

The fourth proportional to 39,749.81, 54,854.28 and 21,844.62 is: 30,145.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,749.81 : 54,854.28 = 21,844.62 : x
  2. Step 2: Convert to fraction form
    39,749.81/54,854.28 = 21,844.62/x
  3. Step 3: Cross multiply
    39,749.81x = 54,854.28 × 21,844.62
  4. Step 4: Simplify right side
    39,749.81x = 1,198,270,901.97
  5. Step 5: Solve for x
    x = 1,198,270,901.97/39,749.81
  6. Step 6: Final answer
    x = 30,145.33

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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.