Home / 20,865.44-31,298.18-5,283.07

Finding the Fourth Proportional to 20,865.44, 31,298.18 and 5,283.07

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Solution

The fourth proportional to 20,865.44, 31,298.18 and 5,283.07 is: 7,924.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,865.44 : 31,298.18 = 5,283.07 : x
  2. Step 2: Convert to fraction form
    20,865.44/31,298.18 = 5,283.07/x
  3. Step 3: Cross multiply
    20,865.44x = 31,298.18 × 5,283.07
  4. Step 4: Simplify right side
    20,865.44x = 165,350,475.81
  5. Step 5: Solve for x
    x = 165,350,475.81/20,865.44
  6. Step 6: Final answer
    x = 7,924.61

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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.