Home / 20,776.23-28,662.12-14,059.44

Finding the Fourth Proportional to 20,776.23, 28,662.12 and 14,059.44

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Solution

The fourth proportional to 20,776.23, 28,662.12 and 14,059.44 is: 19,395.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776.23 : 28,662.12 = 14,059.44 : x
  2. Step 2: Convert to fraction form
    20,776.23/28,662.12 = 14,059.44/x
  3. Step 3: Cross multiply
    20,776.23x = 28,662.12 × 14,059.44
  4. Step 4: Simplify right side
    20,776.23x = 402,973,356.41
  5. Step 5: Solve for x
    x = 402,973,356.41/20,776.23
  6. Step 6: Final answer
    x = 19,395.88

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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.