Home / 21,060.83-31,568.55-11,190.17

Finding the Fourth Proportional to 21,060.83, 31,568.55 and 11,190.17

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Solution

The fourth proportional to 21,060.83, 31,568.55 and 11,190.17 is: 16,773.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.83 : 31,568.55 = 11,190.17 : x
  2. Step 2: Convert to fraction form
    21,060.83/31,568.55 = 11,190.17/x
  3. Step 3: Cross multiply
    21,060.83x = 31,568.55 × 11,190.17
  4. Step 4: Simplify right side
    21,060.83x = 353,257,441.15
  5. Step 5: Solve for x
    x = 353,257,441.15/21,060.83
  6. Step 6: Final answer
    x = 16,773.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.