Home / 20,851.86-31,275.96-5,859.24

Finding the Fourth Proportional to 20,851.86, 31,275.96 and 5,859.24

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Solution

The fourth proportional to 20,851.86, 31,275.96 and 5,859.24 is: 8,788.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,851.86 : 31,275.96 = 5,859.24 : x
  2. Step 2: Convert to fraction form
    20,851.86/31,275.96 = 5,859.24/x
  3. Step 3: Cross multiply
    20,851.86x = 31,275.96 × 5,859.24
  4. Step 4: Simplify right side
    20,851.86x = 183,253,216.61
  5. Step 5: Solve for x
    x = 183,253,216.61/20,851.86
  6. Step 6: Final answer
    x = 8,788.34

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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.