Home / 21,205.14-29,263.56-11,774.30

Finding the Fourth Proportional to 21,205.14, 29,263.56 and 11,774.30

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Solution

The fourth proportional to 21,205.14, 29,263.56 and 11,774.30 is: 16,248.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205.14 : 29,263.56 = 11,774.30 : x
  2. Step 2: Convert to fraction form
    21,205.14/29,263.56 = 11,774.30/x
  3. Step 3: Cross multiply
    21,205.14x = 29,263.56 × 11,774.30
  4. Step 4: Simplify right side
    21,205.14x = 344,557,934.51
  5. Step 5: Solve for x
    x = 344,557,934.51/21,205.14
  6. Step 6: Final answer
    x = 16,248.79

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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.