Home / 20,566.85-28,343.36-14,891.99

Finding the Fourth Proportional to 20,566.85, 28,343.36 and 14,891.99

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Solution

The fourth proportional to 20,566.85, 28,343.36 and 14,891.99 is: 20,522.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566.85 : 28,343.36 = 14,891.99 : x
  2. Step 2: Convert to fraction form
    20,566.85/28,343.36 = 14,891.99/x
  3. Step 3: Cross multiply
    20,566.85x = 28,343.36 × 14,891.99
  4. Step 4: Simplify right side
    20,566.85x = 422,088,959.23
  5. Step 5: Solve for x
    x = 422,088,959.23/20,566.85
  6. Step 6: Final answer
    x = 20,522.78

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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.