Home / 39,390.61-54,356.87-22,392.49

Finding the Fourth Proportional to 39,390.61, 54,356.87 and 22,392.49

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Solution

The fourth proportional to 39,390.61, 54,356.87 and 22,392.49 is: 30,900.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,390.61 : 54,356.87 = 22,392.49 : x
  2. Step 2: Convert to fraction form
    39,390.61/54,356.87 = 22,392.49/x
  3. Step 3: Cross multiply
    39,390.61x = 54,356.87 × 22,392.49
  4. Step 4: Simplify right side
    39,390.61x = 1,217,185,716.84
  5. Step 5: Solve for x
    x = 1,217,185,716.84/39,390.61
  6. Step 6: Final answer
    x = 30,900.41

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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.