Home / 21,402.82-32,108.28-8,256.52

Finding the Fourth Proportional to 21,402.82, 32,108.28 and 8,256.52

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Solution

The fourth proportional to 21,402.82, 32,108.28 and 8,256.52 is: 12,386.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,402.82 : 32,108.28 = 8,256.52 : x
  2. Step 2: Convert to fraction form
    21,402.82/32,108.28 = 8,256.52/x
  3. Step 3: Cross multiply
    21,402.82x = 32,108.28 × 8,256.52
  4. Step 4: Simplify right side
    21,402.82x = 265,102,655.99
  5. Step 5: Solve for x
    x = 265,102,655.99/21,402.82
  6. Step 6: Final answer
    x = 12,386.34

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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.