Home / 21,367.08-29,486.98-11,935.56

Finding the Fourth Proportional to 21,367.08, 29,486.98 and 11,935.56

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Solution

The fourth proportional to 21,367.08, 29,486.98 and 11,935.56 is: 16,471.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.08 : 29,486.98 = 11,935.56 : x
  2. Step 2: Convert to fraction form
    21,367.08/29,486.98 = 11,935.56/x
  3. Step 3: Cross multiply
    21,367.08x = 29,486.98 × 11,935.56
  4. Step 4: Simplify right side
    21,367.08x = 351,943,619.01
  5. Step 5: Solve for x
    x = 351,943,619.01/21,367.08
  6. Step 6: Final answer
    x = 16,471.30

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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.