Home / 21,477.24-29,655.18-13,928.85

Finding the Fourth Proportional to 21,477.24, 29,655.18 and 13,928.85

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Solution

The fourth proportional to 21,477.24, 29,655.18 and 13,928.85 is: 19,232.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477.24 : 29,655.18 = 13,928.85 : x
  2. Step 2: Convert to fraction form
    21,477.24/29,655.18 = 13,928.85/x
  3. Step 3: Cross multiply
    21,477.24x = 29,655.18 × 13,928.85
  4. Step 4: Simplify right side
    21,477.24x = 413,062,553.94
  5. Step 5: Solve for x
    x = 413,062,553.94/21,477.24
  6. Step 6: Final answer
    x = 19,232.57

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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.