Home / 21,042.86-31,563.63-6,251.72

Finding the Fourth Proportional to 21,042.86, 31,563.63 and 6,251.72

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Solution

The fourth proportional to 21,042.86, 31,563.63 and 6,251.72 is: 9,377.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.86 : 31,563.63 = 6,251.72 : x
  2. Step 2: Convert to fraction form
    21,042.86/31,563.63 = 6,251.72/x
  3. Step 3: Cross multiply
    21,042.86x = 31,563.63 × 6,251.72
  4. Step 4: Simplify right side
    21,042.86x = 197,326,819.13
  5. Step 5: Solve for x
    x = 197,326,819.13/21,042.86
  6. Step 6: Final answer
    x = 9,377.38

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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.