Home / 20,523.12-28,308.41-14,149.98

Finding the Fourth Proportional to 20,523.12, 28,308.41 and 14,149.98

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Solution

The fourth proportional to 20,523.12, 28,308.41 and 14,149.98 is: 19,517.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.12 : 28,308.41 = 14,149.98 : x
  2. Step 2: Convert to fraction form
    20,523.12/28,308.41 = 14,149.98/x
  3. Step 3: Cross multiply
    20,523.12x = 28,308.41 × 14,149.98
  4. Step 4: Simplify right side
    20,523.12x = 400,563,283.29
  5. Step 5: Solve for x
    x = 400,563,283.29/20,523.12
  6. Step 6: Final answer
    x = 19,517.66

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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.