Home / 38,382.87-52,969.35-21,155.84

Finding the Fourth Proportional to 38,382.87, 52,969.35 and 21,155.84

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Solution

The fourth proportional to 38,382.87, 52,969.35 and 21,155.84 is: 29,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,382.87 : 52,969.35 = 21,155.84 : x
  2. Step 2: Convert to fraction form
    38,382.87/52,969.35 = 21,155.84/x
  3. Step 3: Cross multiply
    38,382.87x = 52,969.35 × 21,155.84
  4. Step 4: Simplify right side
    38,382.87x = 1,120,611,093.50
  5. Step 5: Solve for x
    x = 1,120,611,093.50/38,382.87
  6. Step 6: Final answer
    x = 29,195.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.