Home / 20,561.94-28,376.98-11,610.22

Finding the Fourth Proportional to 20,561.94, 28,376.98 and 11,610.22

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Solution

The fourth proportional to 20,561.94, 28,376.98 and 11,610.22 is: 16,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561.94 : 28,376.98 = 11,610.22 : x
  2. Step 2: Convert to fraction form
    20,561.94/28,376.98 = 11,610.22/x
  3. Step 3: Cross multiply
    20,561.94x = 28,376.98 × 11,610.22
  4. Step 4: Simplify right side
    20,561.94x = 329,462,980.74
  5. Step 5: Solve for x
    x = 329,462,980.74/20,561.94
  6. Step 6: Final answer
    x = 16,022.95

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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.