Home / 30,115.38-41,558.49-16,686.39

Finding the Fourth Proportional to 30,115.38, 41,558.49 and 16,686.39

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Solution

The fourth proportional to 30,115.38, 41,558.49 and 16,686.39 is: 23,026.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,115.38 : 41,558.49 = 16,686.39 : x
  2. Step 2: Convert to fraction form
    30,115.38/41,558.49 = 16,686.39/x
  3. Step 3: Cross multiply
    30,115.38x = 41,558.49 × 16,686.39
  4. Step 4: Simplify right side
    30,115.38x = 693,461,171.95
  5. Step 5: Solve for x
    x = 693,461,171.95/30,115.38
  6. Step 6: Final answer
    x = 23,026.81

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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.