Home / 40,648.33-60,979.10-12,561.84

Finding the Fourth Proportional to 40,648.33, 60,979.10 and 12,561.84

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Solution

The fourth proportional to 40,648.33, 60,979.10 and 12,561.84 is: 18,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,648.33 : 60,979.10 = 12,561.84 : x
  2. Step 2: Convert to fraction form
    40,648.33/60,979.10 = 12,561.84/x
  3. Step 3: Cross multiply
    40,648.33x = 60,979.10 × 12,561.84
  4. Step 4: Simplify right side
    40,648.33x = 766,009,697.54
  5. Step 5: Solve for x
    x = 766,009,697.54/40,648.33
  6. Step 6: Final answer
    x = 18,844.80

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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.