Home / 21,022.18-29,009.96-11,590.72

Finding the Fourth Proportional to 21,022.18, 29,009.96 and 11,590.72

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Solution

The fourth proportional to 21,022.18, 29,009.96 and 11,590.72 is: 15,994.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.18 : 29,009.96 = 11,590.72 : x
  2. Step 2: Convert to fraction form
    21,022.18/29,009.96 = 11,590.72/x
  3. Step 3: Cross multiply
    21,022.18x = 29,009.96 × 11,590.72
  4. Step 4: Simplify right side
    21,022.18x = 336,246,323.57
  5. Step 5: Solve for x
    x = 336,246,323.57/21,022.18
  6. Step 6: Final answer
    x = 15,994.84

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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.