Home / 21,269.97-31,902.52-5,688.81

Finding the Fourth Proportional to 21,269.97, 31,902.52 and 5,688.81

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Solution

The fourth proportional to 21,269.97, 31,902.52 and 5,688.81 is: 8,532.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.97 : 31,902.52 = 5,688.81 : x
  2. Step 2: Convert to fraction form
    21,269.97/31,902.52 = 5,688.81/x
  3. Step 3: Cross multiply
    21,269.97x = 31,902.52 × 5,688.81
  4. Step 4: Simplify right side
    21,269.97x = 181,487,186.84
  5. Step 5: Solve for x
    x = 181,487,186.84/21,269.97
  6. Step 6: Final answer
    x = 8,532.56

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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.