Home / 21,367.59-29,487.89-11,935.95

Finding the Fourth Proportional to 21,367.59, 29,487.89 and 11,935.95

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Solution

The fourth proportional to 21,367.59, 29,487.89 and 11,935.95 is: 16,471.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.59 : 29,487.89 = 11,935.95 : x
  2. Step 2: Convert to fraction form
    21,367.59/29,487.89 = 11,935.95/x
  3. Step 3: Cross multiply
    21,367.59x = 29,487.89 × 11,935.95
  4. Step 4: Simplify right side
    21,367.59x = 351,965,980.65
  5. Step 5: Solve for x
    x = 351,965,980.65/21,367.59
  6. Step 6: Final answer
    x = 16,471.95

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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.