Home / 40,479.36-60,719.19-12,399.30

Finding the Fourth Proportional to 40,479.36, 60,719.19 and 12,399.30

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Solution

The fourth proportional to 40,479.36, 60,719.19 and 12,399.30 is: 18,599.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,479.36 : 60,719.19 = 12,399.30 : x
  2. Step 2: Convert to fraction form
    40,479.36/60,719.19 = 12,399.30/x
  3. Step 3: Cross multiply
    40,479.36x = 60,719.19 × 12,399.30
  4. Step 4: Simplify right side
    40,479.36x = 752,875,452.57
  5. Step 5: Solve for x
    x = 752,875,452.57/40,479.36
  6. Step 6: Final answer
    x = 18,599.00

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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.