Home / 28,890.34-43,337.05-9,170.44

Finding the Fourth Proportional to 28,890.34, 43,337.05 and 9,170.44

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Solution

The fourth proportional to 28,890.34, 43,337.05 and 9,170.44 is: 13,756.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,890.34 : 43,337.05 = 9,170.44 : x
  2. Step 2: Convert to fraction form
    28,890.34/43,337.05 = 9,170.44/x
  3. Step 3: Cross multiply
    28,890.34x = 43,337.05 × 9,170.44
  4. Step 4: Simplify right side
    28,890.34x = 397,419,816.80
  5. Step 5: Solve for x
    x = 397,419,816.80/28,890.34
  6. Step 6: Final answer
    x = 13,756.15

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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.