Home / 55,338.40-82,957.20-20,269.60

Finding the Fourth Proportional to 55,338.40, 82,957.20 and 20,269.60

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Solution

The fourth proportional to 55,338.40, 82,957.20 and 20,269.60 is: 30,385.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,338.40 : 82,957.20 = 20,269.60 : x
  2. Step 2: Convert to fraction form
    55,338.40/82,957.20 = 20,269.60/x
  3. Step 3: Cross multiply
    55,338.40x = 82,957.20 × 20,269.60
  4. Step 4: Simplify right side
    55,338.40x = 1,681,509,261.12
  5. Step 5: Solve for x
    x = 1,681,509,261.12/55,338.40
  6. Step 6: Final answer
    x = 30,385.94

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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.