Home / 39,918.56-55,085.28-22,918.88

Finding the Fourth Proportional to 39,918.56, 55,085.28 and 22,918.88

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Solution

The fourth proportional to 39,918.56, 55,085.28 and 22,918.88 is: 31,626.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,918.56 : 55,085.28 = 22,918.88 : x
  2. Step 2: Convert to fraction form
    39,918.56/55,085.28 = 22,918.88/x
  3. Step 3: Cross multiply
    39,918.56x = 55,085.28 × 22,918.88
  4. Step 4: Simplify right side
    39,918.56x = 1,262,492,922.09
  5. Step 5: Solve for x
    x = 1,262,492,922.09/39,918.56
  6. Step 6: Final answer
    x = 31,626.72

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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.