Home / 21,530.38-32,295.22-10,438.02

Finding the Fourth Proportional to 21,530.38, 32,295.22 and 10,438.02

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Solution

The fourth proportional to 21,530.38, 32,295.22 and 10,438.02 is: 15,656.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,530.38 : 32,295.22 = 10,438.02 : x
  2. Step 2: Convert to fraction form
    21,530.38/32,295.22 = 10,438.02/x
  3. Step 3: Cross multiply
    21,530.38x = 32,295.22 × 10,438.02
  4. Step 4: Simplify right side
    21,530.38x = 337,098,152.26
  5. Step 5: Solve for x
    x = 337,098,152.26/21,530.38
  6. Step 6: Final answer
    x = 15,656.86

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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.