Home / 40,726.20-61,067.16-12,638.64

Finding the Fourth Proportional to 40,726.20, 61,067.16 and 12,638.64

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Solution

The fourth proportional to 40,726.20, 61,067.16 and 12,638.64 is: 18,951.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,726.20 : 61,067.16 = 12,638.64 : x
  2. Step 2: Convert to fraction form
    40,726.20/61,067.16 = 12,638.64/x
  3. Step 3: Cross multiply
    40,726.20x = 61,067.16 × 12,638.64
  4. Step 4: Simplify right side
    40,726.20x = 771,805,851.06
  5. Step 5: Solve for x
    x = 771,805,851.06/40,726.20
  6. Step 6: Final answer
    x = 18,951.09

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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.