Home / 22,143.08-33,223.26-12,778.15

Finding the Fourth Proportional to 22,143.08, 33,223.26 and 12,778.15

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Solution

The fourth proportional to 22,143.08, 33,223.26 and 12,778.15 is: 19,172.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143.08 : 33,223.26 = 12,778.15 : x
  2. Step 2: Convert to fraction form
    22,143.08/33,223.26 = 12,778.15/x
  3. Step 3: Cross multiply
    22,143.08x = 33,223.26 × 12,778.15
  4. Step 4: Simplify right side
    22,143.08x = 424,531,799.77
  5. Step 5: Solve for x
    x = 424,531,799.77/22,143.08
  6. Step 6: Final answer
    x = 19,172.21

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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.