Home / 37,658.18-51,968.12-20,891.18

Finding the Fourth Proportional to 37,658.18, 51,968.12 and 20,891.18

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Solution

The fourth proportional to 37,658.18, 51,968.12 and 20,891.18 is: 28,829.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,658.18 : 51,968.12 = 20,891.18 : x
  2. Step 2: Convert to fraction form
    37,658.18/51,968.12 = 20,891.18/x
  3. Step 3: Cross multiply
    37,658.18x = 51,968.12 × 20,891.18
  4. Step 4: Simplify right side
    37,658.18x = 1,085,675,349.18
  5. Step 5: Solve for x
    x = 1,085,675,349.18/37,658.18
  6. Step 6: Final answer
    x = 28,829.73

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Double scale
Find fourth proportional to 37,659.18, 51,969.50 and 20,892.18
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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.