Home / 28,914.40-39,902.72-16,167.23

Finding the Fourth Proportional to 28,914.40, 39,902.72 and 16,167.23

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Solution

The fourth proportional to 28,914.40, 39,902.72 and 16,167.23 is: 22,311.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.40 : 39,902.72 = 16,167.23 : x
  2. Step 2: Convert to fraction form
    28,914.40/39,902.72 = 16,167.23/x
  3. Step 3: Cross multiply
    28,914.40x = 39,902.72 × 16,167.23
  4. Step 4: Simplify right side
    28,914.40x = 645,116,451.87
  5. Step 5: Solve for x
    x = 645,116,451.87/28,914.40
  6. Step 6: Final answer
    x = 22,311.25

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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.