Home / 28,251.90-42,382.71-11,620.98

Finding the Fourth Proportional to 28,251.90, 42,382.71 and 11,620.98

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Solution

The fourth proportional to 28,251.90, 42,382.71 and 11,620.98 is: 17,433.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,251.90 : 42,382.71 = 11,620.98 : x
  2. Step 2: Convert to fraction form
    28,251.90/42,382.71 = 11,620.98/x
  3. Step 3: Cross multiply
    28,251.90x = 42,382.71 × 11,620.98
  4. Step 4: Simplify right side
    28,251.90x = 492,528,625.26
  5. Step 5: Solve for x
    x = 492,528,625.26/28,251.90
  6. Step 6: Final answer
    x = 17,433.47

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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.