Home / 39,081.39-53,932.37-21,176.40

Finding the Fourth Proportional to 39,081.39, 53,932.37 and 21,176.40

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Solution

The fourth proportional to 39,081.39, 53,932.37 and 21,176.40 is: 29,223.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,081.39 : 53,932.37 = 21,176.40 : x
  2. Step 2: Convert to fraction form
    39,081.39/53,932.37 = 21,176.40/x
  3. Step 3: Cross multiply
    39,081.39x = 53,932.37 × 21,176.40
  4. Step 4: Simplify right side
    39,081.39x = 1,142,093,536.43
  5. Step 5: Solve for x
    x = 1,142,093,536.43/39,081.39
  6. Step 6: Final answer
    x = 29,223.47

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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.