Home / 31,785.58-47,649.12-10,994.50

Finding the Fourth Proportional to 31,785.58, 47,649.12 and 10,994.50

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Solution

The fourth proportional to 31,785.58, 47,649.12 and 10,994.50 is: 16,481.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,785.58 : 47,649.12 = 10,994.50 : x
  2. Step 2: Convert to fraction form
    31,785.58/47,649.12 = 10,994.50/x
  3. Step 3: Cross multiply
    31,785.58x = 47,649.12 × 10,994.50
  4. Step 4: Simplify right side
    31,785.58x = 523,878,249.84
  5. Step 5: Solve for x
    x = 523,878,249.84/31,785.58
  6. Step 6: Final answer
    x = 16,481.63

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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.