Home / 35,485.10-48,967.79-20,367.12

Finding the Fourth Proportional to 35,485.10, 48,967.79 and 20,367.12

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Solution

The fourth proportional to 35,485.10, 48,967.79 and 20,367.12 is: 28,105.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,485.10 : 48,967.79 = 20,367.12 : x
  2. Step 2: Convert to fraction form
    35,485.10/48,967.79 = 20,367.12/x
  3. Step 3: Cross multiply
    35,485.10x = 48,967.79 × 20,367.12
  4. Step 4: Simplify right side
    35,485.10x = 997,332,855.06
  5. Step 5: Solve for x
    x = 997,332,855.06/35,485.10
  6. Step 6: Final answer
    x = 28,105.68

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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.