Home / 39,989.58-55,185.18-22,084.23

Finding the Fourth Proportional to 39,989.58, 55,185.18 and 22,084.23

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Solution

The fourth proportional to 39,989.58, 55,185.18 and 22,084.23 is: 30,475.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,989.58 : 55,185.18 = 22,084.23 : x
  2. Step 2: Convert to fraction form
    39,989.58/55,185.18 = 22,084.23/x
  3. Step 3: Cross multiply
    39,989.58x = 55,185.18 × 22,084.23
  4. Step 4: Simplify right side
    39,989.58x = 1,218,722,207.71
  5. Step 5: Solve for x
    x = 1,218,722,207.71/39,989.58
  6. Step 6: Final answer
    x = 30,475.99

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Double scale
Find fourth proportional to 39,990.58, 55,186.56 and 22,085.23
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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.