Home / 22,148.40-33,222.60-20,458.80

Finding the Fourth Proportional to 22,148.40, 33,222.60 and 20,458.80

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Solution

The fourth proportional to 22,148.40, 33,222.60 and 20,458.80 is: 30,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,148.40 : 33,222.60 = 20,458.80 : x
  2. Step 2: Convert to fraction form
    22,148.40/33,222.60 = 20,458.80/x
  3. Step 3: Cross multiply
    22,148.40x = 33,222.60 × 20,458.80
  4. Step 4: Simplify right side
    22,148.40x = 679,694,528.88
  5. Step 5: Solve for x
    x = 679,694,528.88/22,148.40
  6. Step 6: Final answer
    x = 30,688.20

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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.