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Finding the Fourth Proportional to 22,277.70, 33,428.70 and 9,131.40

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Solution

The fourth proportional to 22,277.70, 33,428.70 and 9,131.40 is: 13,702.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,277.70 : 33,428.70 = 9,131.40 : x
  2. Step 2: Convert to fraction form
    22,277.70/33,428.70 = 9,131.40/x
  3. Step 3: Cross multiply
    22,277.70x = 33,428.70 × 9,131.40
  4. Step 4: Simplify right side
    22,277.70x = 305,250,831.18
  5. Step 5: Solve for x
    x = 305,250,831.18/22,277.70
  6. Step 6: Final answer
    x = 13,702.08

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1.5x scale

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.