Home / 15,405.37-23,108.63-4,311.77

Finding the Fourth Proportional to 15,405.37, 23,108.63 and 4,311.77

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Solution

The fourth proportional to 15,405.37, 23,108.63 and 4,311.77 is: 6,467.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,405.37 : 23,108.63 = 4,311.77 : x
  2. Step 2: Convert to fraction form
    15,405.37/23,108.63 = 4,311.77/x
  3. Step 3: Cross multiply
    15,405.37x = 23,108.63 × 4,311.77
  4. Step 4: Simplify right side
    15,405.37x = 99,639,082.97
  5. Step 5: Solve for x
    x = 99,639,082.97/15,405.37
  6. Step 6: Final answer
    x = 6,467.82

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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.