Home / 20,574.38-30,861.58-5,784.80

Finding the Fourth Proportional to 20,574.38, 30,861.58 and 5,784.80

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Solution

The fourth proportional to 20,574.38, 30,861.58 and 5,784.80 is: 8,677.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.38 : 30,861.58 = 5,784.80 : x
  2. Step 2: Convert to fraction form
    20,574.38/30,861.58 = 5,784.80/x
  3. Step 3: Cross multiply
    20,574.38x = 30,861.58 × 5,784.80
  4. Step 4: Simplify right side
    20,574.38x = 178,528,067.98
  5. Step 5: Solve for x
    x = 178,528,067.98/20,574.38
  6. Step 6: Final answer
    x = 8,677.20

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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.