Home / 21,506.65-29,683.93-11,949.82

Finding the Fourth Proportional to 21,506.65, 29,683.93 and 11,949.82

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Solution

The fourth proportional to 21,506.65, 29,683.93 and 11,949.82 is: 16,493.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,506.65 : 29,683.93 = 11,949.82 : x
  2. Step 2: Convert to fraction form
    21,506.65/29,683.93 = 11,949.82/x
  3. Step 3: Cross multiply
    21,506.65x = 29,683.93 × 11,949.82
  4. Step 4: Simplify right side
    21,506.65x = 354,717,691.87
  5. Step 5: Solve for x
    x = 354,717,691.87/21,506.65
  6. Step 6: Final answer
    x = 16,493.39

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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.