Home / 21,314.43-31,971.64-5,732.05

Finding the Fourth Proportional to 21,314.43, 31,971.64 and 5,732.05

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Solution

The fourth proportional to 21,314.43, 31,971.64 and 5,732.05 is: 8,598.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314.43 : 31,971.64 = 5,732.05 : x
  2. Step 2: Convert to fraction form
    21,314.43/31,971.64 = 5,732.05/x
  3. Step 3: Cross multiply
    21,314.43x = 31,971.64 × 5,732.05
  4. Step 4: Simplify right side
    21,314.43x = 183,263,039.06
  5. Step 5: Solve for x
    x = 183,263,039.06/21,314.43
  6. Step 6: Final answer
    x = 8,598.07

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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.