Home / 21,368.28-29,487.26-11,935

Finding the Fourth Proportional to 21,368.28, 29,487.26 and 11,935

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Solution

The fourth proportional to 21,368.28, 29,487.26 and 11,935 is: 16,469.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.28 : 29,487.26 = 11,935 : x
  2. Step 2: Convert to fraction form
    21,368.28/29,487.26 = 11,935/x
  3. Step 3: Cross multiply
    21,368.28x = 29,487.26 × 11,935
  4. Step 4: Simplify right side
    21,368.28x = 351,930,448.10
  5. Step 5: Solve for x
    x = 351,930,448.10/21,368.28
  6. Step 6: Final answer
    x = 16,469.76

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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.