Home / 21,490.93-29,657.04-11,930.26

Finding the Fourth Proportional to 21,490.93, 29,657.04 and 11,930.26

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Solution

The fourth proportional to 21,490.93, 29,657.04 and 11,930.26 is: 16,463.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490.93 : 29,657.04 = 11,930.26 : x
  2. Step 2: Convert to fraction form
    21,490.93/29,657.04 = 11,930.26/x
  3. Step 3: Cross multiply
    21,490.93x = 29,657.04 × 11,930.26
  4. Step 4: Simplify right side
    21,490.93x = 353,816,198.03
  5. Step 5: Solve for x
    x = 353,816,198.03/21,490.93
  6. Step 6: Final answer
    x = 16,463.51

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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.