Home / 21,425.42-29,564.30-11,993.99

Finding the Fourth Proportional to 21,425.42, 29,564.30 and 11,993.99

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Solution

The fourth proportional to 21,425.42, 29,564.30 and 11,993.99 is: 16,550.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.42 : 29,564.30 = 11,993.99 : x
  2. Step 2: Convert to fraction form
    21,425.42/29,564.30 = 11,993.99/x
  3. Step 3: Cross multiply
    21,425.42x = 29,564.30 × 11,993.99
  4. Step 4: Simplify right side
    21,425.42x = 354,593,710.77
  5. Step 5: Solve for x
    x = 354,593,710.77/21,425.42
  6. Step 6: Final answer
    x = 16,550.14

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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.