Home / 20,850.08-31,279.77-9,750.71

Finding the Fourth Proportional to 20,850.08, 31,279.77 and 9,750.71

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Solution

The fourth proportional to 20,850.08, 31,279.77 and 9,750.71 is: 14,628.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.08 : 31,279.77 = 9,750.71 : x
  2. Step 2: Convert to fraction form
    20,850.08/31,279.77 = 9,750.71/x
  3. Step 3: Cross multiply
    20,850.08x = 31,279.77 × 9,750.71
  4. Step 4: Simplify right side
    20,850.08x = 304,999,966.14
  5. Step 5: Solve for x
    x = 304,999,966.14/20,850.08
  6. Step 6: Final answer
    x = 14,628.24

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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.