Home / 21,049.76-29,050.44-11,620.28

Finding the Fourth Proportional to 21,049.76, 29,050.44 and 11,620.28

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Solution

The fourth proportional to 21,049.76, 29,050.44 and 11,620.28 is: 16,036.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,049.76 : 29,050.44 = 11,620.28 : x
  2. Step 2: Convert to fraction form
    21,049.76/29,050.44 = 11,620.28/x
  3. Step 3: Cross multiply
    21,049.76x = 29,050.44 × 11,620.28
  4. Step 4: Simplify right side
    21,049.76x = 337,574,246.92
  5. Step 5: Solve for x
    x = 337,574,246.92/21,049.76
  6. Step 6: Final answer
    x = 16,036.96

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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.