Home / 39,356.70-54,311.78-21,451.66

Finding the Fourth Proportional to 39,356.70, 54,311.78 and 21,451.66

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Solution

The fourth proportional to 39,356.70, 54,311.78 and 21,451.66 is: 29,603.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,356.70 : 54,311.78 = 21,451.66 : x
  2. Step 2: Convert to fraction form
    39,356.70/54,311.78 = 21,451.66/x
  3. Step 3: Cross multiply
    39,356.70x = 54,311.78 × 21,451.66
  4. Step 4: Simplify right side
    39,356.70x = 1,165,077,838.55
  5. Step 5: Solve for x
    x = 1,165,077,838.55/39,356.70
  6. Step 6: Final answer
    x = 29,603.04

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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.