Home / 21,089.70-29,101.14-11,658.42

Finding the Fourth Proportional to 21,089.70, 29,101.14 and 11,658.42

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Solution

The fourth proportional to 21,089.70, 29,101.14 and 11,658.42 is: 16,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,089.70 : 29,101.14 = 11,658.42 : x
  2. Step 2: Convert to fraction form
    21,089.70/29,101.14 = 11,658.42/x
  3. Step 3: Cross multiply
    21,089.70x = 29,101.14 × 11,658.42
  4. Step 4: Simplify right side
    21,089.70x = 339,273,312.60
  5. Step 5: Solve for x
    x = 339,273,312.60/21,089.70
  6. Step 6: Final answer
    x = 16,087.16

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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.