Home / 22,203.87-30,640.78-12,132.36

Finding the Fourth Proportional to 22,203.87, 30,640.78 and 12,132.36

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Solution

The fourth proportional to 22,203.87, 30,640.78 and 12,132.36 is: 16,742.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,203.87 : 30,640.78 = 12,132.36 : x
  2. Step 2: Convert to fraction form
    22,203.87/30,640.78 = 12,132.36/x
  3. Step 3: Cross multiply
    22,203.87x = 30,640.78 × 12,132.36
  4. Step 4: Simplify right side
    22,203.87x = 371,744,988.81
  5. Step 5: Solve for x
    x = 371,744,988.81/22,203.87
  6. Step 6: Final answer
    x = 16,742.35

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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.