Home / 19,367.40-29,061.90-8,272.20

Finding the Fourth Proportional to 19,367.40, 29,061.90 and 8,272.20

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Solution

The fourth proportional to 19,367.40, 29,061.90 and 8,272.20 is: 12,412.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,367.40 : 29,061.90 = 8,272.20 : x
  2. Step 2: Convert to fraction form
    19,367.40/29,061.90 = 8,272.20/x
  3. Step 3: Cross multiply
    19,367.40x = 29,061.90 × 8,272.20
  4. Step 4: Simplify right side
    19,367.40x = 240,405,849.18
  5. Step 5: Solve for x
    x = 240,405,849.18/19,367.40
  6. Step 6: Final answer
    x = 12,412.91

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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.