Home / 21,022.22-29,009.93-11,590.71

Finding the Fourth Proportional to 21,022.22, 29,009.93 and 11,590.71

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Solution

The fourth proportional to 21,022.22, 29,009.93 and 11,590.71 is: 15,994.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.22 : 29,009.93 = 11,590.71 : x
  2. Step 2: Convert to fraction form
    21,022.22/29,009.93 = 11,590.71/x
  3. Step 3: Cross multiply
    21,022.22x = 29,009.93 × 11,590.71
  4. Step 4: Simplify right side
    21,022.22x = 336,245,627.80
  5. Step 5: Solve for x
    x = 336,245,627.80/21,022.22
  6. Step 6: Final answer
    x = 15,994.78

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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.