Home / 28,198.46-38,886.91-16,866.04

Finding the Fourth Proportional to 28,198.46, 38,886.91 and 16,866.04

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Solution

The fourth proportional to 28,198.46, 38,886.91 and 16,866.04 is: 23,259.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,198.46 : 38,886.91 = 16,866.04 : x
  2. Step 2: Convert to fraction form
    28,198.46/38,886.91 = 16,866.04/x
  3. Step 3: Cross multiply
    28,198.46x = 38,886.91 × 16,866.04
  4. Step 4: Simplify right side
    28,198.46x = 655,868,242.53
  5. Step 5: Solve for x
    x = 655,868,242.53/28,198.46
  6. Step 6: Final answer
    x = 23,259.01

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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.