Home / 21,398.85-29,527.83-11,837.43

Finding the Fourth Proportional to 21,398.85, 29,527.83 and 11,837.43

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Solution

The fourth proportional to 21,398.85, 29,527.83 and 11,837.43 is: 16,334.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398.85 : 29,527.83 = 11,837.43 : x
  2. Step 2: Convert to fraction form
    21,398.85/29,527.83 = 11,837.43/x
  3. Step 3: Cross multiply
    21,398.85x = 29,527.83 × 11,837.43
  4. Step 4: Simplify right side
    21,398.85x = 349,533,620.68
  5. Step 5: Solve for x
    x = 349,533,620.68/21,398.85
  6. Step 6: Final answer
    x = 16,334.22

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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.