Home / 21,313.32-29,412.60-11,753.55

Finding the Fourth Proportional to 21,313.32, 29,412.60 and 11,753.55

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Solution

The fourth proportional to 21,313.32, 29,412.60 and 11,753.55 is: 16,220.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.32 : 29,412.60 = 11,753.55 : x
  2. Step 2: Convert to fraction form
    21,313.32/29,412.60 = 11,753.55/x
  3. Step 3: Cross multiply
    21,313.32x = 29,412.60 × 11,753.55
  4. Step 4: Simplify right side
    21,313.32x = 345,702,464.73
  5. Step 5: Solve for x
    x = 345,702,464.73/21,313.32
  6. Step 6: Final answer
    x = 16,220.02

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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.