Home / 21,381.81-29,506.94-11,950.37

Finding the Fourth Proportional to 21,381.81, 29,506.94 and 11,950.37

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Solution

The fourth proportional to 21,381.81, 29,506.94 and 11,950.37 is: 16,491.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,381.81 : 29,506.94 = 11,950.37 : x
  2. Step 2: Convert to fraction form
    21,381.81/29,506.94 = 11,950.37/x
  3. Step 3: Cross multiply
    21,381.81x = 29,506.94 × 11,950.37
  4. Step 4: Simplify right side
    21,381.81x = 352,618,643.28
  5. Step 5: Solve for x
    x = 352,618,643.28/21,381.81
  6. Step 6: Final answer
    x = 16,491.52

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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.