Home / 21,059.96-31,561.98-11,177.96

Finding the Fourth Proportional to 21,059.96, 31,561.98 and 11,177.96

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Solution

The fourth proportional to 21,059.96, 31,561.98 and 11,177.96 is: 16,752.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.96 : 31,561.98 = 11,177.96 : x
  2. Step 2: Convert to fraction form
    21,059.96/31,561.98 = 11,177.96/x
  3. Step 3: Cross multiply
    21,059.96x = 31,561.98 × 11,177.96
  4. Step 4: Simplify right side
    21,059.96x = 352,798,392.15
  5. Step 5: Solve for x
    x = 352,798,392.15/21,059.96
  6. Step 6: Final answer
    x = 16,752.10

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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.