Home / 31,645.56-47,440.41-11,937.96

Finding the Fourth Proportional to 31,645.56, 47,440.41 and 11,937.96

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Solution

The fourth proportional to 31,645.56, 47,440.41 and 11,937.96 is: 17,896.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,645.56 : 47,440.41 = 11,937.96 : x
  2. Step 2: Convert to fraction form
    31,645.56/47,440.41 = 11,937.96/x
  3. Step 3: Cross multiply
    31,645.56x = 47,440.41 × 11,937.96
  4. Step 4: Simplify right side
    31,645.56x = 566,341,783.82
  5. Step 5: Solve for x
    x = 566,341,783.82/31,645.56
  6. Step 6: Final answer
    x = 17,896.40

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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.