Home / 30,648.65-42,292.54-17,218.85

Finding the Fourth Proportional to 30,648.65, 42,292.54 and 17,218.85

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Solution

The fourth proportional to 30,648.65, 42,292.54 and 17,218.85 is: 23,760.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,648.65 : 42,292.54 = 17,218.85 : x
  2. Step 2: Convert to fraction form
    30,648.65/42,292.54 = 17,218.85/x
  3. Step 3: Cross multiply
    30,648.65x = 42,292.54 × 17,218.85
  4. Step 4: Simplify right side
    30,648.65x = 728,228,902.38
  5. Step 5: Solve for x
    x = 728,228,902.38/30,648.65
  6. Step 6: Final answer
    x = 23,760.55

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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.