Home / 15,380.55-23,068.20-4,288.34

Finding the Fourth Proportional to 15,380.55, 23,068.20 and 4,288.34

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Solution

The fourth proportional to 15,380.55, 23,068.20 and 4,288.34 is: 6,431.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,380.55 : 23,068.20 = 4,288.34 : x
  2. Step 2: Convert to fraction form
    15,380.55/23,068.20 = 4,288.34/x
  3. Step 3: Cross multiply
    15,380.55x = 23,068.20 × 4,288.34
  4. Step 4: Simplify right side
    15,380.55x = 98,924,284.79
  5. Step 5: Solve for x
    x = 98,924,284.79/15,380.55
  6. Step 6: Final answer
    x = 6,431.78

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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.