Home / 40,428.62-60,639.05-19,076.36

Finding the Fourth Proportional to 40,428.62, 60,639.05 and 19,076.36

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Solution

The fourth proportional to 40,428.62, 60,639.05 and 19,076.36 is: 28,612.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,428.62 : 60,639.05 = 19,076.36 : x
  2. Step 2: Convert to fraction form
    40,428.62/60,639.05 = 19,076.36/x
  3. Step 3: Cross multiply
    40,428.62x = 60,639.05 × 19,076.36
  4. Step 4: Simplify right side
    40,428.62x = 1,156,771,949.28
  5. Step 5: Solve for x
    x = 1,156,771,949.28/40,428.62
  6. Step 6: Final answer
    x = 28,612.70

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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.