Home / 21,041.04-31,579.68-8,568

Finding the Fourth Proportional to 21,041.04, 31,579.68 and 8,568

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Solution

The fourth proportional to 21,041.04, 31,579.68 and 8,568 is: 12,859.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,041.04 : 31,579.68 = 8,568 : x
  2. Step 2: Convert to fraction form
    21,041.04/31,579.68 = 8,568/x
  3. Step 3: Cross multiply
    21,041.04x = 31,579.68 × 8,568
  4. Step 4: Simplify right side
    21,041.04x = 270,574,698.24
  5. Step 5: Solve for x
    x = 270,574,698.24/21,041.04
  6. Step 6: Final answer
    x = 12,859.38

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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.