Home / 35,125.36-48,481.68-20,986.60

Finding the Fourth Proportional to 35,125.36, 48,481.68 and 20,986.60

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Solution

The fourth proportional to 35,125.36, 48,481.68 and 20,986.60 is: 28,966.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,125.36 : 48,481.68 = 20,986.60 : x
  2. Step 2: Convert to fraction form
    35,125.36/48,481.68 = 20,986.60/x
  3. Step 3: Cross multiply
    35,125.36x = 48,481.68 × 20,986.60
  4. Step 4: Simplify right side
    35,125.36x = 1,017,465,625.49
  5. Step 5: Solve for x
    x = 1,017,465,625.49/35,125.36
  6. Step 6: Final answer
    x = 28,966.70

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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.