Home / 21,963.72-32,913-11,543.88

Finding the Fourth Proportional to 21,963.72, 32,913 and 11,543.88

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Solution

The fourth proportional to 21,963.72, 32,913 and 11,543.88 is: 17,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.72 : 32,913 = 11,543.88 : x
  2. Step 2: Convert to fraction form
    21,963.72/32,913 = 11,543.88/x
  3. Step 3: Cross multiply
    21,963.72x = 32,913 × 11,543.88
  4. Step 4: Simplify right side
    21,963.72x = 379,943,722.44
  5. Step 5: Solve for x
    x = 379,943,722.44/21,963.72
  6. Step 6: Final answer
    x = 17,298.70

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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.