Home / 34,740.90-47,942.28-18,825.21

Finding the Fourth Proportional to 34,740.90, 47,942.28 and 18,825.21

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Solution

The fourth proportional to 34,740.90, 47,942.28 and 18,825.21 is: 25,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,740.90 : 47,942.28 = 18,825.21 : x
  2. Step 2: Convert to fraction form
    34,740.90/47,942.28 = 18,825.21/x
  3. Step 3: Cross multiply
    34,740.90x = 47,942.28 × 18,825.21
  4. Step 4: Simplify right side
    34,740.90x = 902,523,488.88
  5. Step 5: Solve for x
    x = 902,523,488.88/34,740.90
  6. Step 6: Final answer
    x = 25,978.70

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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.