Home / 21,727.95-29,998.40-14,933.13

Finding the Fourth Proportional to 21,727.95, 29,998.40 and 14,933.13

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Solution

The fourth proportional to 21,727.95, 29,998.40 and 14,933.13 is: 20,617.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,727.95 : 29,998.40 = 14,933.13 : x
  2. Step 2: Convert to fraction form
    21,727.95/29,998.40 = 14,933.13/x
  3. Step 3: Cross multiply
    21,727.95x = 29,998.40 × 14,933.13
  4. Step 4: Simplify right side
    21,727.95x = 447,969,932.33
  5. Step 5: Solve for x
    x = 447,969,932.33/21,727.95
  6. Step 6: Final answer
    x = 20,617.22

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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.