Home / 20,667.12-30,932.84-14,651.66

Finding the Fourth Proportional to 20,667.12, 30,932.84 and 14,651.66

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Solution

The fourth proportional to 20,667.12, 30,932.84 and 14,651.66 is: 21,929.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667.12 : 30,932.84 = 14,651.66 : x
  2. Step 2: Convert to fraction form
    20,667.12/30,932.84 = 14,651.66/x
  3. Step 3: Cross multiply
    20,667.12x = 30,932.84 × 14,651.66
  4. Step 4: Simplify right side
    20,667.12x = 453,217,454.51
  5. Step 5: Solve for x
    x = 453,217,454.51/20,667.12
  6. Step 6: Final answer
    x = 21,929.40

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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.