Home / 20,049.45-30,074.18-5,258.31

Finding the Fourth Proportional to 20,049.45, 30,074.18 and 5,258.31

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Solution

The fourth proportional to 20,049.45, 30,074.18 and 5,258.31 is: 7,887.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049.45 : 30,074.18 = 5,258.31 : x
  2. Step 2: Convert to fraction form
    20,049.45/30,074.18 = 5,258.31/x
  3. Step 3: Cross multiply
    20,049.45x = 30,074.18 × 5,258.31
  4. Step 4: Simplify right side
    20,049.45x = 158,139,335.14
  5. Step 5: Solve for x
    x = 158,139,335.14/20,049.45
  6. Step 6: Final answer
    x = 7,887.47

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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.