Home / 18,780.64-25,944.30-14,998.84

Finding the Fourth Proportional to 18,780.64, 25,944.30 and 14,998.84

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Solution

The fourth proportional to 18,780.64, 25,944.30 and 14,998.84 is: 20,719.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.64 : 25,944.30 = 14,998.84 : x
  2. Step 2: Convert to fraction form
    18,780.64/25,944.30 = 14,998.84/x
  3. Step 3: Cross multiply
    18,780.64x = 25,944.30 × 14,998.84
  4. Step 4: Simplify right side
    18,780.64x = 389,134,404.61
  5. Step 5: Solve for x
    x = 389,134,404.61/18,780.64
  6. Step 6: Final answer
    x = 20,719.98

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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.