Home / 34,258.97-47,278.49-18,945.74

Finding the Fourth Proportional to 34,258.97, 47,278.49 and 18,945.74

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Solution

The fourth proportional to 34,258.97, 47,278.49 and 18,945.74 is: 26,145.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,258.97 : 47,278.49 = 18,945.74 : x
  2. Step 2: Convert to fraction form
    34,258.97/47,278.49 = 18,945.74/x
  3. Step 3: Cross multiply
    34,258.97x = 47,278.49 × 18,945.74
  4. Step 4: Simplify right side
    34,258.97x = 895,725,648.01
  5. Step 5: Solve for x
    x = 895,725,648.01/34,258.97
  6. Step 6: Final answer
    x = 26,145.73

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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.