Home / 35,307.60-52,944.30-20,520.78

Finding the Fourth Proportional to 35,307.60, 52,944.30 and 20,520.78

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Solution

The fourth proportional to 35,307.60, 52,944.30 and 20,520.78 is: 30,771.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,307.60 : 52,944.30 = 20,520.78 : x
  2. Step 2: Convert to fraction form
    35,307.60/52,944.30 = 20,520.78/x
  3. Step 3: Cross multiply
    35,307.60x = 52,944.30 × 20,520.78
  4. Step 4: Simplify right side
    35,307.60x = 1,086,458,332.55
  5. Step 5: Solve for x
    x = 1,086,458,332.55/35,307.60
  6. Step 6: Final answer
    x = 30,771.23

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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.