Home / 21,341.88-31,932.63-14,780.88

Finding the Fourth Proportional to 21,341.88, 31,932.63 and 14,780.88

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Solution

The fourth proportional to 21,341.88, 31,932.63 and 14,780.88 is: 22,115.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341.88 : 31,932.63 = 14,780.88 : x
  2. Step 2: Convert to fraction form
    21,341.88/31,932.63 = 14,780.88/x
  3. Step 3: Cross multiply
    21,341.88x = 31,932.63 × 14,780.88
  4. Step 4: Simplify right side
    21,341.88x = 471,992,372.11
  5. Step 5: Solve for x
    x = 471,992,372.11/21,341.88
  6. Step 6: Final answer
    x = 22,115.78

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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.