Home / 28,891.97-39,870.16-16,145.26

Finding the Fourth Proportional to 28,891.97, 39,870.16 and 16,145.26

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Solution

The fourth proportional to 28,891.97, 39,870.16 and 16,145.26 is: 22,280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891.97 : 39,870.16 = 16,145.26 : x
  2. Step 2: Convert to fraction form
    28,891.97/39,870.16 = 16,145.26/x
  3. Step 3: Cross multiply
    28,891.97x = 39,870.16 × 16,145.26
  4. Step 4: Simplify right side
    28,891.97x = 643,714,099.44
  5. Step 5: Solve for x
    x = 643,714,099.44/28,891.97
  6. Step 6: Final answer
    x = 22,280.03

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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.