Home / 20,896.40-31,347.34-11,036.07

Finding the Fourth Proportional to 20,896.40, 31,347.34 and 11,036.07

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Solution

The fourth proportional to 20,896.40, 31,347.34 and 11,036.07 is: 16,555.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.40 : 31,347.34 = 11,036.07 : x
  2. Step 2: Convert to fraction form
    20,896.40/31,347.34 = 11,036.07/x
  3. Step 3: Cross multiply
    20,896.40x = 31,347.34 × 11,036.07
  4. Step 4: Simplify right side
    20,896.40x = 345,951,410.96
  5. Step 5: Solve for x
    x = 345,951,410.96/20,896.40
  6. Step 6: Final answer
    x = 16,555.55

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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.