Home / 20,144.65-30,227.31-8,307.52

Finding the Fourth Proportional to 20,144.65, 30,227.31 and 8,307.52

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Solution

The fourth proportional to 20,144.65, 30,227.31 and 8,307.52 is: 12,465.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.65 : 30,227.31 = 8,307.52 : x
  2. Step 2: Convert to fraction form
    20,144.65/30,227.31 = 8,307.52/x
  3. Step 3: Cross multiply
    20,144.65x = 30,227.31 × 8,307.52
  4. Step 4: Simplify right side
    20,144.65x = 251,113,982.37
  5. Step 5: Solve for x
    x = 251,113,982.37/20,144.65
  6. Step 6: Final answer
    x = 12,465.54

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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.