Home / 21,273.84-29,357.40-11,842.20

Finding the Fourth Proportional to 21,273.84, 29,357.40 and 11,842.20

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Solution

The fourth proportional to 21,273.84, 29,357.40 and 11,842.20 is: 16,341.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.84 : 29,357.40 = 11,842.20 : x
  2. Step 2: Convert to fraction form
    21,273.84/29,357.40 = 11,842.20/x
  3. Step 3: Cross multiply
    21,273.84x = 29,357.40 × 11,842.20
  4. Step 4: Simplify right side
    21,273.84x = 347,656,202.28
  5. Step 5: Solve for x
    x = 347,656,202.28/21,273.84
  6. Step 6: Final answer
    x = 16,341.96

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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.