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Finding the Fourth Proportional to 30,261.38, 41,760.70 and 17,013.38

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Solution

The fourth proportional to 30,261.38, 41,760.70 and 17,013.38 is: 23,478.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,261.38 : 41,760.70 = 17,013.38 : x
  2. Step 2: Convert to fraction form
    30,261.38/41,760.70 = 17,013.38/x
  3. Step 3: Cross multiply
    30,261.38x = 41,760.70 × 17,013.38
  4. Step 4: Simplify right side
    30,261.38x = 710,490,406.83
  5. Step 5: Solve for x
    x = 710,490,406.83/30,261.38
  6. Step 6: Final answer
    x = 23,478.46

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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.