Home / 20,875.83-31,257.70-16,327.78

Finding the Fourth Proportional to 20,875.83, 31,257.70 and 16,327.78

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Solution

The fourth proportional to 20,875.83, 31,257.70 and 16,327.78 is: 24,447.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875.83 : 31,257.70 = 16,327.78 : x
  2. Step 2: Convert to fraction form
    20,875.83/31,257.70 = 16,327.78/x
  3. Step 3: Cross multiply
    20,875.83x = 31,257.70 × 16,327.78
  4. Step 4: Simplify right side
    20,875.83x = 510,368,729.94
  5. Step 5: Solve for x
    x = 510,368,729.94/20,875.83
  6. Step 6: Final answer
    x = 24,447.83

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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.