Home / 31,775.97-47,661.33-10,715.55

Finding the Fourth Proportional to 31,775.97, 47,661.33 and 10,715.55

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Solution

The fourth proportional to 31,775.97, 47,661.33 and 10,715.55 is: 16,072.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,775.97 : 47,661.33 = 10,715.55 : x
  2. Step 2: Convert to fraction form
    31,775.97/47,661.33 = 10,715.55/x
  3. Step 3: Cross multiply
    31,775.97x = 47,661.33 × 10,715.55
  4. Step 4: Simplify right side
    31,775.97x = 510,717,364.68
  5. Step 5: Solve for x
    x = 510,717,364.68/31,775.97
  6. Step 6: Final answer
    x = 16,072.44

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Double scale
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1.5x scale

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.