Home / 22,007.84-30,340.44-21,318.56

Finding the Fourth Proportional to 22,007.84, 30,340.44 and 21,318.56

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Solution

The fourth proportional to 22,007.84, 30,340.44 and 21,318.56 is: 29,390.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,007.84 : 30,340.44 = 21,318.56 : x
  2. Step 2: Convert to fraction form
    22,007.84/30,340.44 = 21,318.56/x
  3. Step 3: Cross multiply
    22,007.84x = 30,340.44 × 21,318.56
  4. Step 4: Simplify right side
    22,007.84x = 646,814,490.57
  5. Step 5: Solve for x
    x = 646,814,490.57/22,007.84
  6. Step 6: Final answer
    x = 29,390.19

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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.