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Finding the Fourth Proportional to 22,989.92, 31,652.76 and 19,619.21

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Solution

The fourth proportional to 22,989.92, 31,652.76 and 19,619.21 is: 27,011.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,989.92 : 31,652.76 = 19,619.21 : x
  2. Step 2: Convert to fraction form
    22,989.92/31,652.76 = 19,619.21/x
  3. Step 3: Cross multiply
    22,989.92x = 31,652.76 × 19,619.21
  4. Step 4: Simplify right side
    22,989.92x = 621,002,145.52
  5. Step 5: Solve for x
    x = 621,002,145.52/22,989.92
  6. Step 6: Final answer
    x = 27,011.93

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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.