Home / 21,237.92-29,308.67-11,678.22

Finding the Fourth Proportional to 21,237.92, 29,308.67 and 11,678.22

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Solution

The fourth proportional to 21,237.92, 29,308.67 and 11,678.22 is: 16,116.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,237.92 : 29,308.67 = 11,678.22 : x
  2. Step 2: Convert to fraction form
    21,237.92/29,308.67 = 11,678.22/x
  3. Step 3: Cross multiply
    21,237.92x = 29,308.67 × 11,678.22
  4. Step 4: Simplify right side
    21,237.92x = 342,272,891.23
  5. Step 5: Solve for x
    x = 342,272,891.23/21,237.92
  6. Step 6: Final answer
    x = 16,116.12

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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.