Home / 21,631.01-32,462.35-11,109.80

Finding the Fourth Proportional to 21,631.01, 32,462.35 and 11,109.80

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Solution

The fourth proportional to 21,631.01, 32,462.35 and 11,109.80 is: 16,672.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.01 : 32,462.35 = 11,109.80 : x
  2. Step 2: Convert to fraction form
    21,631.01/32,462.35 = 11,109.80/x
  3. Step 3: Cross multiply
    21,631.01x = 32,462.35 × 11,109.80
  4. Step 4: Simplify right side
    21,631.01x = 360,650,269.41
  5. Step 5: Solve for x
    x = 360,650,269.41/21,631.01
  6. Step 6: Final answer
    x = 16,672.84

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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.