Home / 30,651.61-42,299.25-17,222.86

Finding the Fourth Proportional to 30,651.61, 42,299.25 and 17,222.86

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Solution

The fourth proportional to 30,651.61, 42,299.25 and 17,222.86 is: 23,767.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651.61 : 42,299.25 = 17,222.86 : x
  2. Step 2: Convert to fraction form
    30,651.61/42,299.25 = 17,222.86/x
  3. Step 3: Cross multiply
    30,651.61x = 42,299.25 × 17,222.86
  4. Step 4: Simplify right side
    30,651.61x = 728,514,060.86
  5. Step 5: Solve for x
    x = 728,514,060.86/30,651.61
  6. Step 6: Final answer
    x = 23,767.56

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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.