Home / 22,749.84-31,388.04-21,998.16

Finding the Fourth Proportional to 22,749.84, 31,388.04 and 21,998.16

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Solution

The fourth proportional to 22,749.84, 31,388.04 and 21,998.16 is: 30,350.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,749.84 : 31,388.04 = 21,998.16 : x
  2. Step 2: Convert to fraction form
    22,749.84/31,388.04 = 21,998.16/x
  3. Step 3: Cross multiply
    22,749.84x = 31,388.04 × 21,998.16
  4. Step 4: Simplify right side
    22,749.84x = 690,479,126.01
  5. Step 5: Solve for x
    x = 690,479,126.01/22,749.84
  6. Step 6: Final answer
    x = 30,350.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.