Home / 35,395.80-48,840.60-20,285.55

Finding the Fourth Proportional to 35,395.80, 48,840.60 and 20,285.55

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Solution

The fourth proportional to 35,395.80, 48,840.60 and 20,285.55 is: 27,990.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,395.80 : 48,840.60 = 20,285.55 : x
  2. Step 2: Convert to fraction form
    35,395.80/48,840.60 = 20,285.55/x
  3. Step 3: Cross multiply
    35,395.80x = 48,840.60 × 20,285.55
  4. Step 4: Simplify right side
    35,395.80x = 990,758,189.13
  5. Step 5: Solve for x
    x = 990,758,189.13/35,395.80
  6. Step 6: Final answer
    x = 27,990.84

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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.