Home / 20,560.88-28,374.92-11,608.45

Finding the Fourth Proportional to 20,560.88, 28,374.92 and 11,608.45

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Solution

The fourth proportional to 20,560.88, 28,374.92 and 11,608.45 is: 16,020.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.88 : 28,374.92 = 11,608.45 : x
  2. Step 2: Convert to fraction form
    20,560.88/28,374.92 = 11,608.45/x
  3. Step 3: Cross multiply
    20,560.88x = 28,374.92 × 11,608.45
  4. Step 4: Simplify right side
    20,560.88x = 329,388,840.07
  5. Step 5: Solve for x
    x = 329,388,840.07/20,560.88
  6. Step 6: Final answer
    x = 16,020.17

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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.