Home / 38,578.28-53,240.49-21,584.48

Finding the Fourth Proportional to 38,578.28, 53,240.49 and 21,584.48

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Solution

The fourth proportional to 38,578.28, 53,240.49 and 21,584.48 is: 29,787.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,578.28 : 53,240.49 = 21,584.48 : x
  2. Step 2: Convert to fraction form
    38,578.28/53,240.49 = 21,584.48/x
  3. Step 3: Cross multiply
    38,578.28x = 53,240.49 × 21,584.48
  4. Step 4: Simplify right side
    38,578.28x = 1,149,168,025.39
  5. Step 5: Solve for x
    x = 1,149,168,025.39/38,578.28
  6. Step 6: Final answer
    x = 29,787.96

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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.