Home / 15,143.60-20,835.96-14,793.68

Finding the Fourth Proportional to 15,143.60, 20,835.96 and 14,793.68

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Solution

The fourth proportional to 15,143.60, 20,835.96 and 14,793.68 is: 20,354.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,143.60 : 20,835.96 = 14,793.68 : x
  2. Step 2: Convert to fraction form
    15,143.60/20,835.96 = 14,793.68/x
  3. Step 3: Cross multiply
    15,143.60x = 20,835.96 × 14,793.68
  4. Step 4: Simplify right side
    15,143.60x = 308,240,524.73
  5. Step 5: Solve for x
    x = 308,240,524.73/15,143.60
  6. Step 6: Final answer
    x = 20,354.51

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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.