Home / 34,390.12-51,514.79-20,307.66

Finding the Fourth Proportional to 34,390.12, 51,514.79 and 20,307.66

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Solution

The fourth proportional to 34,390.12, 51,514.79 and 20,307.66 is: 30,419.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,390.12 : 51,514.79 = 20,307.66 : x
  2. Step 2: Convert to fraction form
    34,390.12/51,514.79 = 20,307.66/x
  3. Step 3: Cross multiply
    34,390.12x = 51,514.79 × 20,307.66
  4. Step 4: Simplify right side
    34,390.12x = 1,046,144,835.34
  5. Step 5: Solve for x
    x = 1,046,144,835.34/34,390.12
  6. Step 6: Final answer
    x = 30,419.92

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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.