Home / 21,524.13-29,710.26-13,957.11

Finding the Fourth Proportional to 21,524.13, 29,710.26 and 13,957.11

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Solution

The fourth proportional to 21,524.13, 29,710.26 and 13,957.11 is: 19,265.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,524.13 : 29,710.26 = 13,957.11 : x
  2. Step 2: Convert to fraction form
    21,524.13/29,710.26 = 13,957.11/x
  3. Step 3: Cross multiply
    21,524.13x = 29,710.26 × 13,957.11
  4. Step 4: Simplify right side
    21,524.13x = 414,669,366.95
  5. Step 5: Solve for x
    x = 414,669,366.95/21,524.13
  6. Step 6: Final answer
    x = 19,265.33

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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.