Home / 15,851.50-23,781.35-5,990.86

Finding the Fourth Proportional to 15,851.50, 23,781.35 and 5,990.86

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Solution

The fourth proportional to 15,851.50, 23,781.35 and 5,990.86 is: 8,987.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,851.50 : 23,781.35 = 5,990.86 : x
  2. Step 2: Convert to fraction form
    15,851.50/23,781.35 = 5,990.86/x
  3. Step 3: Cross multiply
    15,851.50x = 23,781.35 × 5,990.86
  4. Step 4: Simplify right side
    15,851.50x = 142,470,749.47
  5. Step 5: Solve for x
    x = 142,470,749.47/15,851.50
  6. Step 6: Final answer
    x = 8,987.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.