Home / 21,632.14-29,856.99-13,669.30

Finding the Fourth Proportional to 21,632.14, 29,856.99 and 13,669.30

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Solution

The fourth proportional to 21,632.14, 29,856.99 and 13,669.30 is: 18,866.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,632.14 : 29,856.99 = 13,669.30 : x
  2. Step 2: Convert to fraction form
    21,632.14/29,856.99 = 13,669.30/x
  3. Step 3: Cross multiply
    21,632.14x = 29,856.99 × 13,669.30
  4. Step 4: Simplify right side
    21,632.14x = 408,124,153.41
  5. Step 5: Solve for x
    x = 408,124,153.41/21,632.14
  6. Step 6: Final answer
    x = 18,866.56

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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.