Home / 35,495.22-48,983.45-20,390.80

Finding the Fourth Proportional to 35,495.22, 48,983.45 and 20,390.80

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Solution

The fourth proportional to 35,495.22, 48,983.45 and 20,390.80 is: 28,139.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,495.22 : 48,983.45 = 20,390.80 : x
  2. Step 2: Convert to fraction form
    35,495.22/48,983.45 = 20,390.80/x
  3. Step 3: Cross multiply
    35,495.22x = 48,983.45 × 20,390.80
  4. Step 4: Simplify right side
    35,495.22x = 998,811,732.26
  5. Step 5: Solve for x
    x = 998,811,732.26/35,495.22
  6. Step 6: Final answer
    x = 28,139.33

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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.