Home / 20,856.06-31,262.19-9,753.39

Finding the Fourth Proportional to 20,856.06, 31,262.19 and 9,753.39

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Solution

The fourth proportional to 20,856.06, 31,262.19 and 9,753.39 is: 14,619.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,856.06 : 31,262.19 = 9,753.39 : x
  2. Step 2: Convert to fraction form
    20,856.06/31,262.19 = 9,753.39/x
  3. Step 3: Cross multiply
    20,856.06x = 31,262.19 × 9,753.39
  4. Step 4: Simplify right side
    20,856.06x = 304,912,331.32
  5. Step 5: Solve for x
    x = 304,912,331.32/20,856.06
  6. Step 6: Final answer
    x = 14,619.84

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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.