Home / 21,248.42-29,323.20-11,816.99

Finding the Fourth Proportional to 21,248.42, 29,323.20 and 11,816.99

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Solution

The fourth proportional to 21,248.42, 29,323.20 and 11,816.99 is: 16,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.42 : 29,323.20 = 11,816.99 : x
  2. Step 2: Convert to fraction form
    21,248.42/29,323.20 = 11,816.99/x
  3. Step 3: Cross multiply
    21,248.42x = 29,323.20 × 11,816.99
  4. Step 4: Simplify right side
    21,248.42x = 346,511,755.47
  5. Step 5: Solve for x
    x = 346,511,755.47/21,248.42
  6. Step 6: Final answer
    x = 16,307.65

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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.