Home / 35,398.05-48,843.70-20,287.80

Finding the Fourth Proportional to 35,398.05, 48,843.70 and 20,287.80

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Solution

The fourth proportional to 35,398.05, 48,843.70 and 20,287.80 is: 27,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,398.05 : 48,843.70 = 20,287.80 : x
  2. Step 2: Convert to fraction form
    35,398.05/48,843.70 = 20,287.80/x
  3. Step 3: Cross multiply
    35,398.05x = 48,843.70 × 20,287.80
  4. Step 4: Simplify right side
    35,398.05x = 990,931,216.86
  5. Step 5: Solve for x
    x = 990,931,216.86/35,398.05
  6. Step 6: Final answer
    x = 27,993.95

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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.