Home / 22,478.06-33,737.86-21,121.78

Finding the Fourth Proportional to 22,478.06, 33,737.86 and 21,121.78

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Solution

The fourth proportional to 22,478.06, 33,737.86 and 21,121.78 is: 31,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,478.06 : 33,737.86 = 21,121.78 : x
  2. Step 2: Convert to fraction form
    22,478.06/33,737.86 = 21,121.78/x
  3. Step 3: Cross multiply
    22,478.06x = 33,737.86 × 21,121.78
  4. Step 4: Simplify right side
    22,478.06x = 712,603,656.59
  5. Step 5: Solve for x
    x = 712,603,656.59/22,478.06
  6. Step 6: Final answer
    x = 31,702.19

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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.