Home / 20,992.27-31,488.36-14,398.45

Finding the Fourth Proportional to 20,992.27, 31,488.36 and 14,398.45

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Solution

The fourth proportional to 20,992.27, 31,488.36 and 14,398.45 is: 21,597.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,992.27 : 31,488.36 = 14,398.45 : x
  2. Step 2: Convert to fraction form
    20,992.27/31,488.36 = 14,398.45/x
  3. Step 3: Cross multiply
    20,992.27x = 31,488.36 × 14,398.45
  4. Step 4: Simplify right side
    20,992.27x = 453,383,577.04
  5. Step 5: Solve for x
    x = 453,383,577.04/20,992.27
  6. Step 6: Final answer
    x = 21,597.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.