Home / 21,313.84-29,414.36-11,882.40

Finding the Fourth Proportional to 21,313.84, 29,414.36 and 11,882.40

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Solution

The fourth proportional to 21,313.84, 29,414.36 and 11,882.40 is: 16,398.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.84 : 29,414.36 = 11,882.40 : x
  2. Step 2: Convert to fraction form
    21,313.84/29,414.36 = 11,882.40/x
  3. Step 3: Cross multiply
    21,313.84x = 29,414.36 × 11,882.40
  4. Step 4: Simplify right side
    21,313.84x = 349,513,191.26
  5. Step 5: Solve for x
    x = 349,513,191.26/21,313.84
  6. Step 6: Final answer
    x = 16,398.41

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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.