Home / 35,419.62-48,877.18-20,311.55

Finding the Fourth Proportional to 35,419.62, 48,877.18 and 20,311.55

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Solution

The fourth proportional to 35,419.62, 48,877.18 and 20,311.55 is: 28,028.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,419.62 : 48,877.18 = 20,311.55 : x
  2. Step 2: Convert to fraction form
    35,419.62/48,877.18 = 20,311.55/x
  3. Step 3: Cross multiply
    35,419.62x = 48,877.18 × 20,311.55
  4. Step 4: Simplify right side
    35,419.62x = 992,771,285.43
  5. Step 5: Solve for x
    x = 992,771,285.43/35,419.62
  6. Step 6: Final answer
    x = 28,028.85

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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.