Home / 22,140.83-33,215.81-12,259.35

Finding the Fourth Proportional to 22,140.83, 33,215.81 and 12,259.35

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Solution

The fourth proportional to 22,140.83, 33,215.81 and 12,259.35 is: 18,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,140.83 : 33,215.81 = 12,259.35 : x
  2. Step 2: Convert to fraction form
    22,140.83/33,215.81 = 12,259.35/x
  3. Step 3: Cross multiply
    22,140.83x = 33,215.81 × 12,259.35
  4. Step 4: Simplify right side
    22,140.83x = 407,204,179.03
  5. Step 5: Solve for x
    x = 407,204,179.03/22,140.83
  6. Step 6: Final answer
    x = 18,391.55

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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.