Home / 28,306.70-42,464.10-8,586.80

Finding the Fourth Proportional to 28,306.70, 42,464.10 and 8,586.80

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Solution

The fourth proportional to 28,306.70, 42,464.10 and 8,586.80 is: 12,881.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.70 : 42,464.10 = 8,586.80 : x
  2. Step 2: Convert to fraction form
    28,306.70/42,464.10 = 8,586.80/x
  3. Step 3: Cross multiply
    28,306.70x = 42,464.10 × 8,586.80
  4. Step 4: Simplify right side
    28,306.70x = 364,630,733.88
  5. Step 5: Solve for x
    x = 364,630,733.88/28,306.70
  6. Step 6: Final answer
    x = 12,881.43

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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.