Home / 20,868.56-31,280.94-9,766.22

Finding the Fourth Proportional to 20,868.56, 31,280.94 and 9,766.22

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Solution

The fourth proportional to 20,868.56, 31,280.94 and 9,766.22 is: 14,639.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,868.56 : 31,280.94 = 9,766.22 : x
  2. Step 2: Convert to fraction form
    20,868.56/31,280.94 = 9,766.22/x
  3. Step 3: Cross multiply
    20,868.56x = 31,280.94 × 9,766.22
  4. Step 4: Simplify right side
    20,868.56x = 305,496,541.85
  5. Step 5: Solve for x
    x = 305,496,541.85/20,868.56
  6. Step 6: Final answer
    x = 14,639.08

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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.