Home / 20,851.95-31,273.81-9,755.66

Finding the Fourth Proportional to 20,851.95, 31,273.81 and 9,755.66

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Solution

The fourth proportional to 20,851.95, 31,273.81 and 9,755.66 is: 14,631.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,851.95 : 31,273.81 = 9,755.66 : x
  2. Step 2: Convert to fraction form
    20,851.95/31,273.81 = 9,755.66/x
  3. Step 3: Cross multiply
    20,851.95x = 31,273.81 × 9,755.66
  4. Step 4: Simplify right side
    20,851.95x = 305,096,657.26
  5. Step 5: Solve for x
    x = 305,096,657.26/20,851.95
  6. Step 6: Final answer
    x = 14,631.56

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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.