Home / 16,931.14-25,399.89-7,571.53

Finding the Fourth Proportional to 16,931.14, 25,399.89 and 7,571.53

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Solution

The fourth proportional to 16,931.14, 25,399.89 and 7,571.53 is: 11,358.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,931.14 : 25,399.89 = 7,571.53 : x
  2. Step 2: Convert to fraction form
    16,931.14/25,399.89 = 7,571.53/x
  3. Step 3: Cross multiply
    16,931.14x = 25,399.89 × 7,571.53
  4. Step 4: Simplify right side
    16,931.14x = 192,316,029.13
  5. Step 5: Solve for x
    x = 192,316,029.13/16,931.14
  6. Step 6: Final answer
    x = 11,358.72

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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.