Home / 21,820.18-32,730.30-6,237.82

Finding the Fourth Proportional to 21,820.18, 32,730.30 and 6,237.82

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Solution

The fourth proportional to 21,820.18, 32,730.30 and 6,237.82 is: 9,356.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,820.18 : 32,730.30 = 6,237.82 : x
  2. Step 2: Convert to fraction form
    21,820.18/32,730.30 = 6,237.82/x
  3. Step 3: Cross multiply
    21,820.18x = 32,730.30 × 6,237.82
  4. Step 4: Simplify right side
    21,820.18x = 204,165,719.95
  5. Step 5: Solve for x
    x = 204,165,719.95/21,820.18
  6. Step 6: Final answer
    x = 9,356.74

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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.