Home / 16,823.78-25,217.85-5,720.30

Finding the Fourth Proportional to 16,823.78, 25,217.85 and 5,720.30

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Solution

The fourth proportional to 16,823.78, 25,217.85 and 5,720.30 is: 8,574.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,823.78 : 25,217.85 = 5,720.30 : x
  2. Step 2: Convert to fraction form
    16,823.78/25,217.85 = 5,720.30/x
  3. Step 3: Cross multiply
    16,823.78x = 25,217.85 × 5,720.30
  4. Step 4: Simplify right side
    16,823.78x = 144,253,667.36
  5. Step 5: Solve for x
    x = 144,253,667.36/16,823.78
  6. Step 6: Final answer
    x = 8,574.39

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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.