Home / 39,022.33-53,850.81-21,117.33

Finding the Fourth Proportional to 39,022.33, 53,850.81 and 21,117.33

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Solution

The fourth proportional to 39,022.33, 53,850.81 and 21,117.33 is: 29,141.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,022.33 : 53,850.81 = 21,117.33 : x
  2. Step 2: Convert to fraction form
    39,022.33/53,850.81 = 21,117.33/x
  3. Step 3: Cross multiply
    39,022.33x = 53,850.81 × 21,117.33
  4. Step 4: Simplify right side
    39,022.33x = 1,137,185,640.08
  5. Step 5: Solve for x
    x = 1,137,185,640.08/39,022.33
  6. Step 6: Final answer
    x = 29,141.92

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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.