Home / 39,022.06-53,850.82-21,117.43

Finding the Fourth Proportional to 39,022.06, 53,850.82 and 21,117.43

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Solution

The fourth proportional to 39,022.06, 53,850.82 and 21,117.43 is: 29,142.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,022.06 : 53,850.82 = 21,117.43 : x
  2. Step 2: Convert to fraction form
    39,022.06/53,850.82 = 21,117.43/x
  3. Step 3: Cross multiply
    39,022.06x = 53,850.82 × 21,117.43
  4. Step 4: Simplify right side
    39,022.06x = 1,137,191,097.67
  5. Step 5: Solve for x
    x = 1,137,191,097.67/39,022.06
  6. Step 6: Final answer
    x = 29,142.26

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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.