Home / 21,273.40-29,356.50-11,841.76

Finding the Fourth Proportional to 21,273.40, 29,356.50 and 11,841.76

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Solution

The fourth proportional to 21,273.40, 29,356.50 and 11,841.76 is: 16,341.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.40 : 29,356.50 = 11,841.76 : x
  2. Step 2: Convert to fraction form
    21,273.40/29,356.50 = 11,841.76/x
  3. Step 3: Cross multiply
    21,273.40x = 29,356.50 × 11,841.76
  4. Step 4: Simplify right side
    21,273.40x = 347,632,627.44
  5. Step 5: Solve for x
    x = 347,632,627.44/21,273.40
  6. Step 6: Final answer
    x = 16,341.19

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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.