Home / 21,214.29-31,832.37-8,743.53

Finding the Fourth Proportional to 21,214.29, 31,832.37 and 8,743.53

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Solution

The fourth proportional to 21,214.29, 31,832.37 and 8,743.53 is: 13,119.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.29 : 31,832.37 = 8,743.53 : x
  2. Step 2: Convert to fraction form
    21,214.29/31,832.37 = 8,743.53/x
  3. Step 3: Cross multiply
    21,214.29x = 31,832.37 × 8,743.53
  4. Step 4: Simplify right side
    21,214.29x = 278,327,282.07
  5. Step 5: Solve for x
    x = 278,327,282.07/21,214.29
  6. Step 6: Final answer
    x = 13,119.80

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1.5x scale

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.