Home / 20,293.54-30,442.75-7,810.66

Finding the Fourth Proportional to 20,293.54, 30,442.75 and 7,810.66

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Solution

The fourth proportional to 20,293.54, 30,442.75 and 7,810.66 is: 11,716.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,293.54 : 30,442.75 = 7,810.66 : x
  2. Step 2: Convert to fraction form
    20,293.54/30,442.75 = 7,810.66/x
  3. Step 3: Cross multiply
    20,293.54x = 30,442.75 × 7,810.66
  4. Step 4: Simplify right side
    20,293.54x = 237,777,969.72
  5. Step 5: Solve for x
    x = 237,777,969.72/20,293.54
  6. Step 6: Final answer
    x = 11,716.93

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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.