Home / 39,731.92-54,829.71-21,582.25

Finding the Fourth Proportional to 39,731.92, 54,829.71 and 21,582.25

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Solution

The fourth proportional to 39,731.92, 54,829.71 and 21,582.25 is: 29,783.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,731.92 : 54,829.71 = 21,582.25 : x
  2. Step 2: Convert to fraction form
    39,731.92/54,829.71 = 21,582.25/x
  3. Step 3: Cross multiply
    39,731.92x = 54,829.71 × 21,582.25
  4. Step 4: Simplify right side
    39,731.92x = 1,183,348,371.57
  5. Step 5: Solve for x
    x = 1,183,348,371.57/39,731.92
  6. Step 6: Final answer
    x = 29,783.32

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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.