Home / 15,905.21-23,859.17-4,218.29

Finding the Fourth Proportional to 15,905.21, 23,859.17 and 4,218.29

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Solution

The fourth proportional to 15,905.21, 23,859.17 and 4,218.29 is: 6,327.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905.21 : 23,859.17 = 4,218.29 : x
  2. Step 2: Convert to fraction form
    15,905.21/23,859.17 = 4,218.29/x
  3. Step 3: Cross multiply
    15,905.21x = 23,859.17 × 4,218.29
  4. Step 4: Simplify right side
    15,905.21x = 100,644,898.22
  5. Step 5: Solve for x
    x = 100,644,898.22/15,905.21
  6. Step 6: Final answer
    x = 6,327.79

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1.5x scale

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.