Home / 38,947.52-58,456-18,182.72

Finding the Fourth Proportional to 38,947.52, 58,456 and 18,182.72

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Solution

The fourth proportional to 38,947.52, 58,456 and 18,182.72 is: 27,290.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,947.52 : 58,456 = 18,182.72 : x
  2. Step 2: Convert to fraction form
    38,947.52/58,456 = 18,182.72/x
  3. Step 3: Cross multiply
    38,947.52x = 58,456 × 18,182.72
  4. Step 4: Simplify right side
    38,947.52x = 1,062,889,080.32
  5. Step 5: Solve for x
    x = 1,062,889,080.32/38,947.52
  6. Step 6: Final answer
    x = 27,290.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.