Home / 22,288.50-33,389.41-12,397.79

Finding the Fourth Proportional to 22,288.50, 33,389.41 and 12,397.79

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Solution

The fourth proportional to 22,288.50, 33,389.41 and 12,397.79 is: 18,572.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,288.50 : 33,389.41 = 12,397.79 : x
  2. Step 2: Convert to fraction form
    22,288.50/33,389.41 = 12,397.79/x
  3. Step 3: Cross multiply
    22,288.50x = 33,389.41 × 12,397.79
  4. Step 4: Simplify right side
    22,288.50x = 413,954,893.40
  5. Step 5: Solve for x
    x = 413,954,893.40/22,288.50
  6. Step 6: Final answer
    x = 18,572.58

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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.