Home / 20,959.68-31,439.52-6,168.30

Finding the Fourth Proportional to 20,959.68, 31,439.52 and 6,168.30

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Solution

The fourth proportional to 20,959.68, 31,439.52 and 6,168.30 is: 9,252.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,959.68 : 31,439.52 = 6,168.30 : x
  2. Step 2: Convert to fraction form
    20,959.68/31,439.52 = 6,168.30/x
  3. Step 3: Cross multiply
    20,959.68x = 31,439.52 × 6,168.30
  4. Step 4: Simplify right side
    20,959.68x = 193,928,391.22
  5. Step 5: Solve for x
    x = 193,928,391.22/20,959.68
  6. Step 6: Final answer
    x = 9,252.45

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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.