Home / 21,367.89-32,024.09-8,702.87

Finding the Fourth Proportional to 21,367.89, 32,024.09 and 8,702.87

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Solution

The fourth proportional to 21,367.89, 32,024.09 and 8,702.87 is: 13,043.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.89 : 32,024.09 = 8,702.87 : x
  2. Step 2: Convert to fraction form
    21,367.89/32,024.09 = 8,702.87/x
  3. Step 3: Cross multiply
    21,367.89x = 32,024.09 × 8,702.87
  4. Step 4: Simplify right side
    21,367.89x = 278,701,524.61
  5. Step 5: Solve for x
    x = 278,701,524.61/21,367.89
  6. Step 6: Final answer
    x = 13,043.01

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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.