Home / 28,370.30-42,548.61-12,566.60

Finding the Fourth Proportional to 28,370.30, 42,548.61 and 12,566.60

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Solution

The fourth proportional to 28,370.30, 42,548.61 and 12,566.60 is: 18,846.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.30 : 42,548.61 = 12,566.60 : x
  2. Step 2: Convert to fraction form
    28,370.30/42,548.61 = 12,566.60/x
  3. Step 3: Cross multiply
    28,370.30x = 42,548.61 × 12,566.60
  4. Step 4: Simplify right side
    28,370.30x = 534,691,149.68
  5. Step 5: Solve for x
    x = 534,691,149.68/28,370.30
  6. Step 6: Final answer
    x = 18,846.87

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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.