Home / 20,639.39-30,959.08-5,056.88

Finding the Fourth Proportional to 20,639.39, 30,959.08 and 5,056.88

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Solution

The fourth proportional to 20,639.39, 30,959.08 and 5,056.88 is: 7,585.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,639.39 : 30,959.08 = 5,056.88 : x
  2. Step 2: Convert to fraction form
    20,639.39/30,959.08 = 5,056.88/x
  3. Step 3: Cross multiply
    20,639.39x = 30,959.08 × 5,056.88
  4. Step 4: Simplify right side
    20,639.39x = 156,556,185.03
  5. Step 5: Solve for x
    x = 156,556,185.03/20,639.39
  6. Step 6: Final answer
    x = 7,585.31

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1.5x scale

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.