Home / 21,320.54-29,414.10-12,366.39

Finding the Fourth Proportional to 21,320.54, 29,414.10 and 12,366.39

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Solution

The fourth proportional to 21,320.54, 29,414.10 and 12,366.39 is: 17,060.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320.54 : 29,414.10 = 12,366.39 : x
  2. Step 2: Convert to fraction form
    21,320.54/29,414.10 = 12,366.39/x
  3. Step 3: Cross multiply
    21,320.54x = 29,414.10 × 12,366.39
  4. Step 4: Simplify right side
    21,320.54x = 363,746,232.10
  5. Step 5: Solve for x
    x = 363,746,232.10/21,320.54
  6. Step 6: Final answer
    x = 17,060.84

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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.