Home / 40,648.36-60,974.52-12,587.80

Finding the Fourth Proportional to 40,648.36, 60,974.52 and 12,587.80

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Solution

The fourth proportional to 40,648.36, 60,974.52 and 12,587.80 is: 18,882.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,648.36 : 60,974.52 = 12,587.80 : x
  2. Step 2: Convert to fraction form
    40,648.36/60,974.52 = 12,587.80/x
  3. Step 3: Cross multiply
    40,648.36x = 60,974.52 × 12,587.80
  4. Step 4: Simplify right side
    40,648.36x = 767,535,062.86
  5. Step 5: Solve for x
    x = 767,535,062.86/40,648.36
  6. Step 6: Final answer
    x = 18,882.31

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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.