Home / 28,142.37-42,201.09-8,417.25

Finding the Fourth Proportional to 28,142.37, 42,201.09 and 8,417.25

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Solution

The fourth proportional to 28,142.37, 42,201.09 and 8,417.25 is: 12,622.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,142.37 : 42,201.09 = 8,417.25 : x
  2. Step 2: Convert to fraction form
    28,142.37/42,201.09 = 8,417.25/x
  3. Step 3: Cross multiply
    28,142.37x = 42,201.09 × 8,417.25
  4. Step 4: Simplify right side
    28,142.37x = 355,217,124.80
  5. Step 5: Solve for x
    x = 355,217,124.80/28,142.37
  6. Step 6: Final answer
    x = 12,622.15

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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.