Home / 28,453.19-42,673.90-8,462.80

Finding the Fourth Proportional to 28,453.19, 42,673.90 and 8,462.80

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Solution

The fourth proportional to 28,453.19, 42,673.90 and 8,462.80 is: 12,692.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453.19 : 42,673.90 = 8,462.80 : x
  2. Step 2: Convert to fraction form
    28,453.19/42,673.90 = 8,462.80/x
  3. Step 3: Cross multiply
    28,453.19x = 42,673.90 × 8,462.80
  4. Step 4: Simplify right side
    28,453.19x = 361,140,553.08
  5. Step 5: Solve for x
    x = 361,140,553.08/28,453.19
  6. Step 6: Final answer
    x = 12,692.44

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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.