Home / 40,239.16-60,360-19,181.48

Finding the Fourth Proportional to 40,239.16, 60,360 and 19,181.48

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Solution

The fourth proportional to 40,239.16, 60,360 and 19,181.48 is: 28,772.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,239.16 : 60,360 = 19,181.48 : x
  2. Step 2: Convert to fraction form
    40,239.16/60,360 = 19,181.48/x
  3. Step 3: Cross multiply
    40,239.16x = 60,360 × 19,181.48
  4. Step 4: Simplify right side
    40,239.16x = 1,157,794,132.80
  5. Step 5: Solve for x
    x = 1,157,794,132.80/40,239.16
  6. Step 6: Final answer
    x = 28,772.82

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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.