Home / 21,106.22-29,127.35-11,674.85

Finding the Fourth Proportional to 21,106.22, 29,127.35 and 11,674.85

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Solution

The fourth proportional to 21,106.22, 29,127.35 and 11,674.85 is: 16,111.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,106.22 : 29,127.35 = 11,674.85 : x
  2. Step 2: Convert to fraction form
    21,106.22/29,127.35 = 11,674.85/x
  3. Step 3: Cross multiply
    21,106.22x = 29,127.35 × 11,674.85
  4. Step 4: Simplify right side
    21,106.22x = 340,057,442.15
  5. Step 5: Solve for x
    x = 340,057,442.15/21,106.22
  6. Step 6: Final answer
    x = 16,111.72

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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.