Home / 21,150.90-29,186.88-11,590.67

Finding the Fourth Proportional to 21,150.90, 29,186.88 and 11,590.67

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Solution

The fourth proportional to 21,150.90, 29,186.88 and 11,590.67 is: 15,994.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150.90 : 29,186.88 = 11,590.67 : x
  2. Step 2: Convert to fraction form
    21,150.90/29,186.88 = 11,590.67/x
  3. Step 3: Cross multiply
    21,150.90x = 29,186.88 × 11,590.67
  4. Step 4: Simplify right side
    21,150.90x = 338,295,348.48
  5. Step 5: Solve for x
    x = 338,295,348.48/21,150.90
  6. Step 6: Final answer
    x = 15,994.37

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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.