Home / 18,771.80-28,157.76-5,624.24

Finding the Fourth Proportional to 18,771.80, 28,157.76 and 5,624.24

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Solution

The fourth proportional to 18,771.80, 28,157.76 and 5,624.24 is: 8,436.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.80 : 28,157.76 = 5,624.24 : x
  2. Step 2: Convert to fraction form
    18,771.80/28,157.76 = 5,624.24/x
  3. Step 3: Cross multiply
    18,771.80x = 28,157.76 × 5,624.24
  4. Step 4: Simplify right side
    18,771.80x = 158,366,000.10
  5. Step 5: Solve for x
    x = 158,366,000.10/18,771.80
  6. Step 6: Final answer
    x = 8,436.38

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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.