Home / 28,188.68-42,282.69-8,466.39

Finding the Fourth Proportional to 28,188.68, 42,282.69 and 8,466.39

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Solution

The fourth proportional to 28,188.68, 42,282.69 and 8,466.39 is: 12,699.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188.68 : 42,282.69 = 8,466.39 : x
  2. Step 2: Convert to fraction form
    28,188.68/42,282.69 = 8,466.39/x
  3. Step 3: Cross multiply
    28,188.68x = 42,282.69 × 8,466.39
  4. Step 4: Simplify right side
    28,188.68x = 357,981,743.79
  5. Step 5: Solve for x
    x = 357,981,743.79/28,188.68
  6. Step 6: Final answer
    x = 12,699.49

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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.