Home / 21,159.46-29,133.30-16,107.40

Finding the Fourth Proportional to 21,159.46, 29,133.30 and 16,107.40

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Solution

The fourth proportional to 21,159.46, 29,133.30 and 16,107.40 is: 22,177.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.46 : 29,133.30 = 16,107.40 : x
  2. Step 2: Convert to fraction form
    21,159.46/29,133.30 = 16,107.40/x
  3. Step 3: Cross multiply
    21,159.46x = 29,133.30 × 16,107.40
  4. Step 4: Simplify right side
    21,159.46x = 469,261,716.42
  5. Step 5: Solve for x
    x = 469,261,716.42/21,159.46
  6. Step 6: Final answer
    x = 22,177.40

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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.