Home / 28,336.05-42,505.59-8,613.09

Finding the Fourth Proportional to 28,336.05, 42,505.59 and 8,613.09

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Solution

The fourth proportional to 28,336.05, 42,505.59 and 8,613.09 is: 12,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,336.05 : 42,505.59 = 8,613.09 : x
  2. Step 2: Convert to fraction form
    28,336.05/42,505.59 = 8,613.09/x
  3. Step 3: Cross multiply
    28,336.05x = 42,505.59 × 8,613.09
  4. Step 4: Simplify right side
    28,336.05x = 366,104,472.17
  5. Step 5: Solve for x
    x = 366,104,472.17/28,336.05
  6. Step 6: Final answer
    x = 12,920.10

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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.