Home / 30,754.62-42,442.13-17,142.98

Finding the Fourth Proportional to 30,754.62, 42,442.13 and 17,142.98

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Solution

The fourth proportional to 30,754.62, 42,442.13 and 17,142.98 is: 23,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,754.62 : 42,442.13 = 17,142.98 : x
  2. Step 2: Convert to fraction form
    30,754.62/42,442.13 = 17,142.98/x
  3. Step 3: Cross multiply
    30,754.62x = 42,442.13 × 17,142.98
  4. Step 4: Simplify right side
    30,754.62x = 727,584,287.82
  5. Step 5: Solve for x
    x = 727,584,287.82/30,754.62
  6. Step 6: Final answer
    x = 23,657.72

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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.