Home / 35,500.77-48,989.42-20,382.80

Finding the Fourth Proportional to 35,500.77, 48,989.42 and 20,382.80

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Solution

The fourth proportional to 35,500.77, 48,989.42 and 20,382.80 is: 28,127.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,500.77 : 48,989.42 = 20,382.80 : x
  2. Step 2: Convert to fraction form
    35,500.77/48,989.42 = 20,382.80/x
  3. Step 3: Cross multiply
    35,500.77x = 48,989.42 × 20,382.80
  4. Step 4: Simplify right side
    35,500.77x = 998,541,203.11
  5. Step 5: Solve for x
    x = 998,541,203.11/35,500.77
  6. Step 6: Final answer
    x = 28,127.31

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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.