Home / 31,716.02-47,595.87-10,939.50

Finding the Fourth Proportional to 31,716.02, 47,595.87 and 10,939.50

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Solution

The fourth proportional to 31,716.02, 47,595.87 and 10,939.50 is: 16,416.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,716.02 : 47,595.87 = 10,939.50 : x
  2. Step 2: Convert to fraction form
    31,716.02/47,595.87 = 10,939.50/x
  3. Step 3: Cross multiply
    31,716.02x = 47,595.87 × 10,939.50
  4. Step 4: Simplify right side
    31,716.02x = 520,675,019.87
  5. Step 5: Solve for x
    x = 520,675,019.87/31,716.02
  6. Step 6: Final answer
    x = 16,416.78

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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.