Home / 20,766.88-31,155.51-5,975.47

Finding the Fourth Proportional to 20,766.88, 31,155.51 and 5,975.47

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Solution

The fourth proportional to 20,766.88, 31,155.51 and 5,975.47 is: 8,964.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,766.88 : 31,155.51 = 5,975.47 : x
  2. Step 2: Convert to fraction form
    20,766.88/31,155.51 = 5,975.47/x
  3. Step 3: Cross multiply
    20,766.88x = 31,155.51 × 5,975.47
  4. Step 4: Simplify right side
    20,766.88x = 186,168,659.56
  5. Step 5: Solve for x
    x = 186,168,659.56/20,766.88
  6. Step 6: Final answer
    x = 8,964.69

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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.