Home / 19,517.75-29,279.15-8,985.23

Finding the Fourth Proportional to 19,517.75, 29,279.15 and 8,985.23

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Solution

The fourth proportional to 19,517.75, 29,279.15 and 8,985.23 is: 13,479.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,517.75 : 29,279.15 = 8,985.23 : x
  2. Step 2: Convert to fraction form
    19,517.75/29,279.15 = 8,985.23/x
  3. Step 3: Cross multiply
    19,517.75x = 29,279.15 × 8,985.23
  4. Step 4: Simplify right side
    19,517.75x = 263,079,852.03
  5. Step 5: Solve for x
    x = 263,079,852.03/19,517.75
  6. Step 6: Final answer
    x = 13,479.01

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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.