Home / 40,649.36-60,976.02-12,588.80

Finding the Fourth Proportional to 40,649.36, 60,976.02 and 12,588.80

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Solution

The fourth proportional to 40,649.36, 60,976.02 and 12,588.80 is: 18,883.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,649.36 : 60,976.02 = 12,588.80 : x
  2. Step 2: Convert to fraction form
    40,649.36/60,976.02 = 12,588.80/x
  3. Step 3: Cross multiply
    40,649.36x = 60,976.02 × 12,588.80
  4. Step 4: Simplify right side
    40,649.36x = 767,614,920.58
  5. Step 5: Solve for x
    x = 767,614,920.58/40,649.36
  6. Step 6: Final answer
    x = 18,883.81

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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.