Home / 19,959.12-29,940.48-5,167.98

Finding the Fourth Proportional to 19,959.12, 29,940.48 and 5,167.98

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Solution

The fourth proportional to 19,959.12, 29,940.48 and 5,167.98 is: 7,752.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959.12 : 29,940.48 = 5,167.98 : x
  2. Step 2: Convert to fraction form
    19,959.12/29,940.48 = 5,167.98/x
  3. Step 3: Cross multiply
    19,959.12x = 29,940.48 × 5,167.98
  4. Step 4: Simplify right side
    19,959.12x = 154,731,801.83
  5. Step 5: Solve for x
    x = 154,731,801.83/19,959.12
  6. Step 6: Final answer
    x = 7,752.44

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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.