Home / 21,341.76-29,451.72-11,910.84

Finding the Fourth Proportional to 21,341.76, 29,451.72 and 11,910.84

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Solution

The fourth proportional to 21,341.76, 29,451.72 and 11,910.84 is: 16,437.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341.76 : 29,451.72 = 11,910.84 : x
  2. Step 2: Convert to fraction form
    21,341.76/29,451.72 = 11,910.84/x
  3. Step 3: Cross multiply
    21,341.76x = 29,451.72 × 11,910.84
  4. Step 4: Simplify right side
    21,341.76x = 350,794,724.64
  5. Step 5: Solve for x
    x = 350,794,724.64/21,341.76
  6. Step 6: Final answer
    x = 16,437.01

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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.