Home / 39,731.06-54,829.83-21,827.22

Finding the Fourth Proportional to 39,731.06, 54,829.83 and 21,827.22

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Solution

The fourth proportional to 39,731.06, 54,829.83 and 21,827.22 is: 30,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,731.06 : 54,829.83 = 21,827.22 : x
  2. Step 2: Convert to fraction form
    39,731.06/54,829.83 = 21,827.22/x
  3. Step 3: Cross multiply
    39,731.06x = 54,829.83 × 21,827.22
  4. Step 4: Simplify right side
    39,731.06x = 1,196,782,761.97
  5. Step 5: Solve for x
    x = 1,196,782,761.97/39,731.06
  6. Step 6: Final answer
    x = 30,122.10

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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.