Home / 21,313.13-29,412.32-11,753.35

Finding the Fourth Proportional to 21,313.13, 29,412.32 and 11,753.35

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Solution

The fourth proportional to 21,313.13, 29,412.32 and 11,753.35 is: 16,219.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.13 : 29,412.32 = 11,753.35 : x
  2. Step 2: Convert to fraction form
    21,313.13/29,412.32 = 11,753.35/x
  3. Step 3: Cross multiply
    21,313.13x = 29,412.32 × 11,753.35
  4. Step 4: Simplify right side
    21,313.13x = 345,693,291.27
  5. Step 5: Solve for x
    x = 345,693,291.27/21,313.13
  6. Step 6: Final answer
    x = 16,219.73

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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.