Home / 21,421.26-32,132.16-8,943.48

Finding the Fourth Proportional to 21,421.26, 32,132.16 and 8,943.48

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Solution

The fourth proportional to 21,421.26, 32,132.16 and 8,943.48 is: 13,415.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,421.26 : 32,132.16 = 8,943.48 : x
  2. Step 2: Convert to fraction form
    21,421.26/32,132.16 = 8,943.48/x
  3. Step 3: Cross multiply
    21,421.26x = 32,132.16 × 8,943.48
  4. Step 4: Simplify right side
    21,421.26x = 287,373,330.32
  5. Step 5: Solve for x
    x = 287,373,330.32/21,421.26
  6. Step 6: Final answer
    x = 13,415.33

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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.