Home / 30,651.30-42,300.04-17,222.51

Finding the Fourth Proportional to 30,651.30, 42,300.04 and 17,222.51

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Solution

The fourth proportional to 30,651.30, 42,300.04 and 17,222.51 is: 23,767.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651.30 : 42,300.04 = 17,222.51 : x
  2. Step 2: Convert to fraction form
    30,651.30/42,300.04 = 17,222.51/x
  3. Step 3: Cross multiply
    30,651.30x = 42,300.04 × 17,222.51
  4. Step 4: Simplify right side
    30,651.30x = 728,512,956.89
  5. Step 5: Solve for x
    x = 728,512,956.89/30,651.30
  6. Step 6: Final answer
    x = 23,767.77

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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.