Home / 21,366.59-29,486.51-11,934.95

Finding the Fourth Proportional to 21,366.59, 29,486.51 and 11,934.95

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Solution

The fourth proportional to 21,366.59, 29,486.51 and 11,934.95 is: 16,470.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,366.59 : 29,486.51 = 11,934.95 : x
  2. Step 2: Convert to fraction form
    21,366.59/29,486.51 = 11,934.95/x
  3. Step 3: Cross multiply
    21,366.59x = 29,486.51 × 11,934.95
  4. Step 4: Simplify right side
    21,366.59x = 351,919,815.42
  5. Step 5: Solve for x
    x = 351,919,815.42/21,366.59
  6. Step 6: Final answer
    x = 16,470.57

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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.