Home / 22,140.80-33,211.20-6,558.40

Finding the Fourth Proportional to 22,140.80, 33,211.20 and 6,558.40

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Solution

The fourth proportional to 22,140.80, 33,211.20 and 6,558.40 is: 9,837.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,140.80 : 33,211.20 = 6,558.40 : x
  2. Step 2: Convert to fraction form
    22,140.80/33,211.20 = 6,558.40/x
  3. Step 3: Cross multiply
    22,140.80x = 33,211.20 × 6,558.40
  4. Step 4: Simplify right side
    22,140.80x = 217,812,334.08
  5. Step 5: Solve for x
    x = 217,812,334.08/22,140.80
  6. Step 6: Final answer
    x = 9,837.60

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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.