Home / 21,454.52-29,604.50-11,894.32

Finding the Fourth Proportional to 21,454.52, 29,604.50 and 11,894.32

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Solution

The fourth proportional to 21,454.52, 29,604.50 and 11,894.32 is: 16,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.52 : 29,604.50 = 11,894.32 : x
  2. Step 2: Convert to fraction form
    21,454.52/29,604.50 = 11,894.32/x
  3. Step 3: Cross multiply
    21,454.52x = 29,604.50 × 11,894.32
  4. Step 4: Simplify right side
    21,454.52x = 352,125,513.87
  5. Step 5: Solve for x
    x = 352,125,513.87/21,454.52
  6. Step 6: Final answer
    x = 16,412.65

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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.