Home / 20,639.07-30,959.19-5,056.68

Finding the Fourth Proportional to 20,639.07, 30,959.19 and 5,056.68

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Solution

The fourth proportional to 20,639.07, 30,959.19 and 5,056.68 is: 7,585.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,639.07 : 30,959.19 = 5,056.68 : x
  2. Step 2: Convert to fraction form
    20,639.07/30,959.19 = 5,056.68/x
  3. Step 3: Cross multiply
    20,639.07x = 30,959.19 × 5,056.68
  4. Step 4: Simplify right side
    20,639.07x = 156,550,716.89
  5. Step 5: Solve for x
    x = 156,550,716.89/20,639.07
  6. Step 6: Final answer
    x = 7,585.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.