Home / 39,905.18-55,069.52-22,000.82

Finding the Fourth Proportional to 39,905.18, 55,069.52 and 22,000.82

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Solution

The fourth proportional to 39,905.18, 55,069.52 and 22,000.82 is: 30,361.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905.18 : 55,069.52 = 22,000.82 : x
  2. Step 2: Convert to fraction form
    39,905.18/55,069.52 = 22,000.82/x
  3. Step 3: Cross multiply
    39,905.18x = 55,069.52 × 22,000.82
  4. Step 4: Simplify right side
    39,905.18x = 1,211,574,597.01
  5. Step 5: Solve for x
    x = 1,211,574,597.01/39,905.18
  6. Step 6: Final answer
    x = 30,361.34

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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.