Home / 31,425.88-47,146.50-10,649.56

Finding the Fourth Proportional to 31,425.88, 47,146.50 and 10,649.56

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Solution

The fourth proportional to 31,425.88, 47,146.50 and 10,649.56 is: 15,976.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,425.88 : 47,146.50 = 10,649.56 : x
  2. Step 2: Convert to fraction form
    31,425.88/47,146.50 = 10,649.56/x
  3. Step 3: Cross multiply
    31,425.88x = 47,146.50 × 10,649.56
  4. Step 4: Simplify right side
    31,425.88x = 502,089,480.54
  5. Step 5: Solve for x
    x = 502,089,480.54/31,425.88
  6. Step 6: Final answer
    x = 15,976.94

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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.