Home / 21,134.66-29,166.71-11,703.22

Finding the Fourth Proportional to 21,134.66, 29,166.71 and 11,703.22

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Solution

The fourth proportional to 21,134.66, 29,166.71 and 11,703.22 is: 16,150.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.66 : 29,166.71 = 11,703.22 : x
  2. Step 2: Convert to fraction form
    21,134.66/29,166.71 = 11,703.22/x
  3. Step 3: Cross multiply
    21,134.66x = 29,166.71 × 11,703.22
  4. Step 4: Simplify right side
    21,134.66x = 341,344,394.55
  5. Step 5: Solve for x
    x = 341,344,394.55/21,134.66
  6. Step 6: Final answer
    x = 16,150.93

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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.