Home / 21,276.28-29,362.62-11,845.48

Finding the Fourth Proportional to 21,276.28, 29,362.62 and 11,845.48

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Solution

The fourth proportional to 21,276.28, 29,362.62 and 11,845.48 is: 16,347.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.28 : 29,362.62 = 11,845.48 : x
  2. Step 2: Convert to fraction form
    21,276.28/29,362.62 = 11,845.48/x
  3. Step 3: Cross multiply
    21,276.28x = 29,362.62 × 11,845.48
  4. Step 4: Simplify right side
    21,276.28x = 347,814,327.96
  5. Step 5: Solve for x
    x = 347,814,327.96/21,276.28
  6. Step 6: Final answer
    x = 16,347.52

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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.