Home / 30,906.14-42,650.07-16,758.91

Finding the Fourth Proportional to 30,906.14, 42,650.07 and 16,758.91

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Solution

The fourth proportional to 30,906.14, 42,650.07 and 16,758.91 is: 23,127.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,906.14 : 42,650.07 = 16,758.91 : x
  2. Step 2: Convert to fraction form
    30,906.14/42,650.07 = 16,758.91/x
  3. Step 3: Cross multiply
    30,906.14x = 42,650.07 × 16,758.91
  4. Step 4: Simplify right side
    30,906.14x = 714,768,471.37
  5. Step 5: Solve for x
    x = 714,768,471.37/30,906.14
  6. Step 6: Final answer
    x = 23,127.07

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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.