Home / 21,837.38-32,756.06-5,421.38

Finding the Fourth Proportional to 21,837.38, 32,756.06 and 5,421.38

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Solution

The fourth proportional to 21,837.38, 32,756.06 and 5,421.38 is: 8,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,837.38 : 32,756.06 = 5,421.38 : x
  2. Step 2: Convert to fraction form
    21,837.38/32,756.06 = 5,421.38/x
  3. Step 3: Cross multiply
    21,837.38x = 32,756.06 × 5,421.38
  4. Step 4: Simplify right side
    21,837.38x = 177,582,898.34
  5. Step 5: Solve for x
    x = 177,582,898.34/21,837.38
  6. Step 6: Final answer
    x = 8,132.06

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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.