Home / 21,615.12-32,375.70-10,498.41

Finding the Fourth Proportional to 21,615.12, 32,375.70 and 10,498.41

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Solution

The fourth proportional to 21,615.12, 32,375.70 and 10,498.41 is: 15,724.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615.12 : 32,375.70 = 10,498.41 : x
  2. Step 2: Convert to fraction form
    21,615.12/32,375.70 = 10,498.41/x
  3. Step 3: Cross multiply
    21,615.12x = 32,375.70 × 10,498.41
  4. Step 4: Simplify right side
    21,615.12x = 339,893,372.64
  5. Step 5: Solve for x
    x = 339,893,372.64/21,615.12
  6. Step 6: Final answer
    x = 15,724.80

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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.