Home / 21,317.19-31,975.76-5,734.82

Finding the Fourth Proportional to 21,317.19, 31,975.76 and 5,734.82

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Solution

The fourth proportional to 21,317.19, 31,975.76 and 5,734.82 is: 8,602.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,317.19 : 31,975.76 = 5,734.82 : x
  2. Step 2: Convert to fraction form
    21,317.19/31,975.76 = 5,734.82/x
  3. Step 3: Cross multiply
    21,317.19x = 31,975.76 × 5,734.82
  4. Step 4: Simplify right side
    21,317.19x = 183,375,082.42
  5. Step 5: Solve for x
    x = 183,375,082.42/21,317.19
  6. Step 6: Final answer
    x = 8,602.22

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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.