Home / 39,099.91-53,957.69-21,194.86

Finding the Fourth Proportional to 39,099.91, 53,957.69 and 21,194.86

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Solution

The fourth proportional to 39,099.91, 53,957.69 and 21,194.86 is: 29,248.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,099.91 : 53,957.69 = 21,194.86 : x
  2. Step 2: Convert to fraction form
    39,099.91/53,957.69 = 21,194.86/x
  3. Step 3: Cross multiply
    39,099.91x = 53,957.69 × 21,194.86
  4. Step 4: Simplify right side
    39,099.91x = 1,143,625,685.47
  5. Step 5: Solve for x
    x = 1,143,625,685.47/39,099.91
  6. Step 6: Final answer
    x = 29,248.81

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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.