Home / 21,368.08-29,488.17-11,935.54

Finding the Fourth Proportional to 21,368.08, 29,488.17 and 11,935.54

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Solution

The fourth proportional to 21,368.08, 29,488.17 and 11,935.54 is: 16,471.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.08 : 29,488.17 = 11,935.54 : x
  2. Step 2: Convert to fraction form
    21,368.08/29,488.17 = 11,935.54/x
  3. Step 3: Cross multiply
    21,368.08x = 29,488.17 × 11,935.54
  4. Step 4: Simplify right side
    21,368.08x = 351,957,232.56
  5. Step 5: Solve for x
    x = 351,957,232.56/21,368.08
  6. Step 6: Final answer
    x = 16,471.17

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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.