Home / 21,272.36-29,354.70-11,710.38

Finding the Fourth Proportional to 21,272.36, 29,354.70 and 11,710.38

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Solution

The fourth proportional to 21,272.36, 29,354.70 and 11,710.38 is: 16,159.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.36 : 29,354.70 = 11,710.38 : x
  2. Step 2: Convert to fraction form
    21,272.36/29,354.70 = 11,710.38/x
  3. Step 3: Cross multiply
    21,272.36x = 29,354.70 × 11,710.38
  4. Step 4: Simplify right side
    21,272.36x = 343,754,691.79
  5. Step 5: Solve for x
    x = 343,754,691.79/21,272.36
  6. Step 6: Final answer
    x = 16,159.69

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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.