Home / 28,217.16-42,330.60-8,494.07

Finding the Fourth Proportional to 28,217.16, 42,330.60 and 8,494.07

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Solution

The fourth proportional to 28,217.16, 42,330.60 and 8,494.07 is: 12,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,217.16 : 42,330.60 = 8,494.07 : x
  2. Step 2: Convert to fraction form
    28,217.16/42,330.60 = 8,494.07/x
  3. Step 3: Cross multiply
    28,217.16x = 42,330.60 × 8,494.07
  4. Step 4: Simplify right side
    28,217.16x = 359,558,867.89
  5. Step 5: Solve for x
    x = 359,558,867.89/28,217.16
  6. Step 6: Final answer
    x = 12,742.56

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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.