Home / 15,709.21-23,563.20-5,320.96

Finding the Fourth Proportional to 15,709.21, 23,563.20 and 5,320.96

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Solution

The fourth proportional to 15,709.21, 23,563.20 and 5,320.96 is: 7,981.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,709.21 : 23,563.20 = 5,320.96 : x
  2. Step 2: Convert to fraction form
    15,709.21/23,563.20 = 5,320.96/x
  3. Step 3: Cross multiply
    15,709.21x = 23,563.20 × 5,320.96
  4. Step 4: Simplify right side
    15,709.21x = 125,378,844.67
  5. Step 5: Solve for x
    x = 125,378,844.67/15,709.21
  6. Step 6: Final answer
    x = 7,981.23

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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.