Home / 28,310.72-39,076.22-19,354.95

Finding the Fourth Proportional to 28,310.72, 39,076.22 and 19,354.95

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Solution

The fourth proportional to 28,310.72, 39,076.22 and 19,354.95 is: 26,714.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.72 : 39,076.22 = 19,354.95 : x
  2. Step 2: Convert to fraction form
    28,310.72/39,076.22 = 19,354.95/x
  3. Step 3: Cross multiply
    28,310.72x = 39,076.22 × 19,354.95
  4. Step 4: Simplify right side
    28,310.72x = 756,318,332.68
  5. Step 5: Solve for x
    x = 756,318,332.68/28,310.72
  6. Step 6: Final answer
    x = 26,714.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.