Home / 20,248.44-30,351.72-7,765.08

Finding the Fourth Proportional to 20,248.44, 30,351.72 and 7,765.08

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Solution

The fourth proportional to 20,248.44, 30,351.72 and 7,765.08 is: 11,639.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248.44 : 30,351.72 = 7,765.08 : x
  2. Step 2: Convert to fraction form
    20,248.44/30,351.72 = 7,765.08/x
  3. Step 3: Cross multiply
    20,248.44x = 30,351.72 × 7,765.08
  4. Step 4: Simplify right side
    20,248.44x = 235,683,533.94
  5. Step 5: Solve for x
    x = 235,683,533.94/20,248.44
  6. Step 6: Final answer
    x = 11,639.59

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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.