Home / 35,138.80-48,514.94-20,803.26

Finding the Fourth Proportional to 35,138.80, 48,514.94 and 20,803.26

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Solution

The fourth proportional to 35,138.80, 48,514.94 and 20,803.26 is: 28,722.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,138.80 : 48,514.94 = 20,803.26 : x
  2. Step 2: Convert to fraction form
    35,138.80/48,514.94 = 20,803.26/x
  3. Step 3: Cross multiply
    35,138.80x = 48,514.94 × 20,803.26
  4. Step 4: Simplify right side
    35,138.80x = 1,009,268,910.70
  5. Step 5: Solve for x
    x = 1,009,268,910.70/35,138.80
  6. Step 6: Final answer
    x = 28,722.35

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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.