Home / 21,342.48-29,454.25-11,784.21

Finding the Fourth Proportional to 21,342.48, 29,454.25 and 11,784.21

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Solution

The fourth proportional to 21,342.48, 29,454.25 and 11,784.21 is: 16,263.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.48 : 29,454.25 = 11,784.21 : x
  2. Step 2: Convert to fraction form
    21,342.48/29,454.25 = 11,784.21/x
  3. Step 3: Cross multiply
    21,342.48x = 29,454.25 × 11,784.21
  4. Step 4: Simplify right side
    21,342.48x = 347,095,067.39
  5. Step 5: Solve for x
    x = 347,095,067.39/21,342.48
  6. Step 6: Final answer
    x = 16,263.11

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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.