Home / 19,916.50-29,867.79-5,872.80

Finding the Fourth Proportional to 19,916.50, 29,867.79 and 5,872.80

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Solution

The fourth proportional to 19,916.50, 29,867.79 and 5,872.80 is: 8,807.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.50 : 29,867.79 = 5,872.80 : x
  2. Step 2: Convert to fraction form
    19,916.50/29,867.79 = 5,872.80/x
  3. Step 3: Cross multiply
    19,916.50x = 29,867.79 × 5,872.80
  4. Step 4: Simplify right side
    19,916.50x = 175,407,557.11
  5. Step 5: Solve for x
    x = 175,407,557.11/19,916.50
  6. Step 6: Final answer
    x = 8,807.15

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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.