Home / 40,146.18-60,256.62-20,439.48

Finding the Fourth Proportional to 40,146.18, 60,256.62 and 20,439.48

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Solution

The fourth proportional to 40,146.18, 60,256.62 and 20,439.48 is: 30,678.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,146.18 : 60,256.62 = 20,439.48 : x
  2. Step 2: Convert to fraction form
    40,146.18/60,256.62 = 20,439.48/x
  3. Step 3: Cross multiply
    40,146.18x = 60,256.62 × 20,439.48
  4. Step 4: Simplify right side
    40,146.18x = 1,231,613,979.36
  5. Step 5: Solve for x
    x = 1,231,613,979.36/40,146.18
  6. Step 6: Final answer
    x = 30,678.24

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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.