Home / 39,287.40-54,213.45-22,287.58

Finding the Fourth Proportional to 39,287.40, 54,213.45 and 22,287.58

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Solution

The fourth proportional to 39,287.40, 54,213.45 and 22,287.58 is: 30,755.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,287.40 : 54,213.45 = 22,287.58 : x
  2. Step 2: Convert to fraction form
    39,287.40/54,213.45 = 22,287.58/x
  3. Step 3: Cross multiply
    39,287.40x = 54,213.45 × 22,287.58
  4. Step 4: Simplify right side
    39,287.40x = 1,208,286,662.68
  5. Step 5: Solve for x
    x = 1,208,286,662.68/39,287.40
  6. Step 6: Final answer
    x = 30,755.06

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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.