Home / 21,327.42-31,997.28-6,538.52

Finding the Fourth Proportional to 21,327.42, 31,997.28 and 6,538.52

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Solution

The fourth proportional to 21,327.42, 31,997.28 and 6,538.52 is: 9,809.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.42 : 31,997.28 = 6,538.52 : x
  2. Step 2: Convert to fraction form
    21,327.42/31,997.28 = 6,538.52/x
  3. Step 3: Cross multiply
    21,327.42x = 31,997.28 × 6,538.52
  4. Step 4: Simplify right side
    21,327.42x = 209,214,959.74
  5. Step 5: Solve for x
    x = 209,214,959.74/21,327.42
  6. Step 6: Final answer
    x = 9,809.67

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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.