Home / 31,543.86-47,315.79-10,767.54

Finding the Fourth Proportional to 31,543.86, 47,315.79 and 10,767.54

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Solution

The fourth proportional to 31,543.86, 47,315.79 and 10,767.54 is: 16,151.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,543.86 : 47,315.79 = 10,767.54 : x
  2. Step 2: Convert to fraction form
    31,543.86/47,315.79 = 10,767.54/x
  3. Step 3: Cross multiply
    31,543.86x = 47,315.79 × 10,767.54
  4. Step 4: Simplify right side
    31,543.86x = 509,474,661.46
  5. Step 5: Solve for x
    x = 509,474,661.46/31,543.86
  6. Step 6: Final answer
    x = 16,151.31

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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.