Home / 21,161.06-29,202.55-11,601.84

Finding the Fourth Proportional to 21,161.06, 29,202.55 and 11,601.84

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Solution

The fourth proportional to 21,161.06, 29,202.55 and 11,601.84 is: 16,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,161.06 : 29,202.55 = 11,601.84 : x
  2. Step 2: Convert to fraction form
    21,161.06/29,202.55 = 11,601.84/x
  3. Step 3: Cross multiply
    21,161.06x = 29,202.55 × 11,601.84
  4. Step 4: Simplify right side
    21,161.06x = 338,803,312.69
  5. Step 5: Solve for x
    x = 338,803,312.69/21,161.06
  6. Step 6: Final answer
    x = 16,010.70

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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.