Home / 38,807.27-53,553.39-21,578.94

Finding the Fourth Proportional to 38,807.27, 53,553.39 and 21,578.94

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Solution

The fourth proportional to 38,807.27, 53,553.39 and 21,578.94 is: 29,778.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,807.27 : 53,553.39 = 21,578.94 : x
  2. Step 2: Convert to fraction form
    38,807.27/53,553.39 = 21,578.94/x
  3. Step 3: Cross multiply
    38,807.27x = 53,553.39 × 21,578.94
  4. Step 4: Simplify right side
    38,807.27x = 1,155,625,281.71
  5. Step 5: Solve for x
    x = 1,155,625,281.71/38,807.27
  6. Step 6: Final answer
    x = 29,778.58

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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.