Home / 20,510.12-30,765.31-7,362.60

Finding the Fourth Proportional to 20,510.12, 30,765.31 and 7,362.60

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Solution

The fourth proportional to 20,510.12, 30,765.31 and 7,362.60 is: 11,043.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510.12 : 30,765.31 = 7,362.60 : x
  2. Step 2: Convert to fraction form
    20,510.12/30,765.31 = 7,362.60/x
  3. Step 3: Cross multiply
    20,510.12x = 30,765.31 × 7,362.60
  4. Step 4: Simplify right side
    20,510.12x = 226,512,653.00
  5. Step 5: Solve for x
    x = 226,512,653.00/20,510.12
  6. Step 6: Final answer
    x = 11,043.95

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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.