Home / 20,862.77-31,295.36-6,824.25

Finding the Fourth Proportional to 20,862.77, 31,295.36 and 6,824.25

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Solution

The fourth proportional to 20,862.77, 31,295.36 and 6,824.25 is: 10,236.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862.77 : 31,295.36 = 6,824.25 : x
  2. Step 2: Convert to fraction form
    20,862.77/31,295.36 = 6,824.25/x
  3. Step 3: Cross multiply
    20,862.77x = 31,295.36 × 6,824.25
  4. Step 4: Simplify right side
    20,862.77x = 213,567,377.54
  5. Step 5: Solve for x
    x = 213,567,377.54/20,862.77
  6. Step 6: Final answer
    x = 10,236.77

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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.