Home / 30,651.71-42,300.60-17,222.92

Finding the Fourth Proportional to 30,651.71, 42,300.60 and 17,222.92

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Solution

The fourth proportional to 30,651.71, 42,300.60 and 17,222.92 is: 23,768.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651.71 : 42,300.60 = 17,222.92 : x
  2. Step 2: Convert to fraction form
    30,651.71/42,300.60 = 17,222.92/x
  3. Step 3: Cross multiply
    30,651.71x = 42,300.60 × 17,222.92
  4. Step 4: Simplify right side
    30,651.71x = 728,539,849.75
  5. Step 5: Solve for x
    x = 728,539,849.75/30,651.71
  6. Step 6: Final answer
    x = 23,768.33

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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.