Home / 22,202.51-30,638.55-12,131.30

Finding the Fourth Proportional to 22,202.51, 30,638.55 and 12,131.30

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Solution

The fourth proportional to 22,202.51, 30,638.55 and 12,131.30 is: 16,740.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,202.51 : 30,638.55 = 12,131.30 : x
  2. Step 2: Convert to fraction form
    22,202.51/30,638.55 = 12,131.30/x
  3. Step 3: Cross multiply
    22,202.51x = 30,638.55 × 12,131.30
  4. Step 4: Simplify right side
    22,202.51x = 371,685,391.36
  5. Step 5: Solve for x
    x = 371,685,391.36/22,202.51
  6. Step 6: Final answer
    x = 16,740.69

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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.