Home / 28,318.60-39,075.78-16,382.44

Finding the Fourth Proportional to 28,318.60, 39,075.78 and 16,382.44

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Solution

The fourth proportional to 28,318.60, 39,075.78 and 16,382.44 is: 22,605.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,318.60 : 39,075.78 = 16,382.44 : x
  2. Step 2: Convert to fraction form
    28,318.60/39,075.78 = 16,382.44/x
  3. Step 3: Cross multiply
    28,318.60x = 39,075.78 × 16,382.44
  4. Step 4: Simplify right side
    28,318.60x = 640,156,621.30
  5. Step 5: Solve for x
    x = 640,156,621.30/28,318.60
  6. Step 6: Final answer
    x = 22,605.52

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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.