Home / 31,845.70-47,765.61-10,783.32

Finding the Fourth Proportional to 31,845.70, 47,765.61 and 10,783.32

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Solution

The fourth proportional to 31,845.70, 47,765.61 and 10,783.32 is: 16,173.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,845.70 : 47,765.61 = 10,783.32 : x
  2. Step 2: Convert to fraction form
    31,845.70/47,765.61 = 10,783.32/x
  3. Step 3: Cross multiply
    31,845.70x = 47,765.61 × 10,783.32
  4. Step 4: Simplify right side
    31,845.70x = 515,071,857.63
  5. Step 5: Solve for x
    x = 515,071,857.63/31,845.70
  6. Step 6: Final answer
    x = 16,173.99

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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.