Home / 35,405.13-48,857.68-20,287.33

Finding the Fourth Proportional to 35,405.13, 48,857.68 and 20,287.33

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Solution

The fourth proportional to 35,405.13, 48,857.68 and 20,287.33 is: 27,995.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,405.13 : 48,857.68 = 20,287.33 : x
  2. Step 2: Convert to fraction form
    35,405.13/48,857.68 = 20,287.33/x
  3. Step 3: Cross multiply
    35,405.13x = 48,857.68 × 20,287.33
  4. Step 4: Simplify right side
    35,405.13x = 991,191,780.41
  5. Step 5: Solve for x
    x = 991,191,780.41/35,405.13
  6. Step 6: Final answer
    x = 27,995.71

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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.