Home / 19,807.78-29,711.66-4,814.82

Finding the Fourth Proportional to 19,807.78, 29,711.66 and 4,814.82

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Solution

The fourth proportional to 19,807.78, 29,711.66 and 4,814.82 is: 7,222.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,807.78 : 29,711.66 = 4,814.82 : x
  2. Step 2: Convert to fraction form
    19,807.78/29,711.66 = 4,814.82/x
  3. Step 3: Cross multiply
    19,807.78x = 29,711.66 × 4,814.82
  4. Step 4: Simplify right side
    19,807.78x = 143,056,294.80
  5. Step 5: Solve for x
    x = 143,056,294.80/19,807.78
  6. Step 6: Final answer
    x = 7,222.23

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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.