Home / 19,675.83-29,514.47-7,988.79

Finding the Fourth Proportional to 19,675.83, 29,514.47 and 7,988.79

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Solution

The fourth proportional to 19,675.83, 29,514.47 and 7,988.79 is: 11,983.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,675.83 : 29,514.47 = 7,988.79 : x
  2. Step 2: Convert to fraction form
    19,675.83/29,514.47 = 7,988.79/x
  3. Step 3: Cross multiply
    19,675.83x = 29,514.47 × 7,988.79
  4. Step 4: Simplify right side
    19,675.83x = 235,784,862.85
  5. Step 5: Solve for x
    x = 235,784,862.85/19,675.83
  6. Step 6: Final answer
    x = 11,983.48

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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.