Home / 39,918.60-55,085.15-22,910.88

Finding the Fourth Proportional to 39,918.60, 55,085.15 and 22,910.88

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Solution

The fourth proportional to 39,918.60, 55,085.15 and 22,910.88 is: 31,615.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,918.60 : 55,085.15 = 22,910.88 : x
  2. Step 2: Convert to fraction form
    39,918.60/55,085.15 = 22,910.88/x
  3. Step 3: Cross multiply
    39,918.60x = 55,085.15 × 22,910.88
  4. Step 4: Simplify right side
    39,918.60x = 1,262,049,261.43
  5. Step 5: Solve for x
    x = 1,262,049,261.43/39,918.60
  6. Step 6: Final answer
    x = 31,615.57

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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.