Home / 30,286.60-45,439.20-15,505.89

Finding the Fourth Proportional to 30,286.60, 45,439.20 and 15,505.89

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Solution

The fourth proportional to 30,286.60, 45,439.20 and 15,505.89 is: 23,263.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.60 : 45,439.20 = 15,505.89 : x
  2. Step 2: Convert to fraction form
    30,286.60/45,439.20 = 15,505.89/x
  3. Step 3: Cross multiply
    30,286.60x = 45,439.20 × 15,505.89
  4. Step 4: Simplify right side
    30,286.60x = 704,575,236.89
  5. Step 5: Solve for x
    x = 704,575,236.89/30,286.60
  6. Step 6: Final answer
    x = 23,263.60

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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.