Home / 21,150.29-29,187.64-11,590.20

Finding the Fourth Proportional to 21,150.29, 29,187.64 and 11,590.20

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Solution

The fourth proportional to 21,150.29, 29,187.64 and 11,590.20 is: 15,994.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150.29 : 29,187.64 = 11,590.20 : x
  2. Step 2: Convert to fraction form
    21,150.29/29,187.64 = 11,590.20/x
  3. Step 3: Cross multiply
    21,150.29x = 29,187.64 × 11,590.20
  4. Step 4: Simplify right side
    21,150.29x = 338,290,585.13
  5. Step 5: Solve for x
    x = 338,290,585.13/21,150.29
  6. Step 6: Final answer
    x = 15,994.61

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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.