Home / 21,454.24-29,599.71-13,910.46

Finding the Fourth Proportional to 21,454.24, 29,599.71 and 13,910.46

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Solution

The fourth proportional to 21,454.24, 29,599.71 and 13,910.46 is: 19,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.24 : 29,599.71 = 13,910.46 : x
  2. Step 2: Convert to fraction form
    21,454.24/29,599.71 = 13,910.46/x
  3. Step 3: Cross multiply
    21,454.24x = 29,599.71 × 13,910.46
  4. Step 4: Simplify right side
    21,454.24x = 411,745,581.97
  5. Step 5: Solve for x
    x = 411,745,581.97/21,454.24
  6. Step 6: Final answer
    x = 19,191.80

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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.