Home / 28,517.00-42,775.34-7,740.50

Finding the Fourth Proportional to 28,517.00, 42,775.34 and 7,740.50

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Solution

The fourth proportional to 28,517.00, 42,775.34 and 7,740.50 is: 11,610.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.00 : 42,775.34 = 7,740.50 : x
  2. Step 2: Convert to fraction form
    28,517.00/42,775.34 = 7,740.50/x
  3. Step 3: Cross multiply
    28,517.00x = 42,775.34 × 7,740.50
  4. Step 4: Simplify right side
    28,517.00x = 331,102,266.69
  5. Step 5: Solve for x
    x = 331,102,266.69/28,517.00
  6. Step 6: Final answer
    x = 11,610.70

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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.