Home / 39,099.85-53,957.85-21,194.84

Finding the Fourth Proportional to 39,099.85, 53,957.85 and 21,194.84

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Solution

The fourth proportional to 39,099.85, 53,957.85 and 21,194.84 is: 29,248.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,099.85 : 53,957.85 = 21,194.84 : x
  2. Step 2: Convert to fraction form
    39,099.85/53,957.85 = 21,194.84/x
  3. Step 3: Cross multiply
    39,099.85x = 53,957.85 × 21,194.84
  4. Step 4: Simplify right side
    39,099.85x = 1,143,627,997.49
  5. Step 5: Solve for x
    x = 1,143,627,997.49/39,099.85
  6. Step 6: Final answer
    x = 29,248.91

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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.