Home / 31,706.28-47,561.46-10,645.47

Finding the Fourth Proportional to 31,706.28, 47,561.46 and 10,645.47

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Solution

The fourth proportional to 31,706.28, 47,561.46 and 10,645.47 is: 15,968.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,706.28 : 47,561.46 = 10,645.47 : x
  2. Step 2: Convert to fraction form
    31,706.28/47,561.46 = 10,645.47/x
  3. Step 3: Cross multiply
    31,706.28x = 47,561.46 × 10,645.47
  4. Step 4: Simplify right side
    31,706.28x = 506,313,884.39
  5. Step 5: Solve for x
    x = 506,313,884.39/31,706.28
  6. Step 6: Final answer
    x = 15,968.89

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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.