Home / 31,755.20-47,632.80-26,609.60

Finding the Fourth Proportional to 31,755.20, 47,632.80 and 26,609.60

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Solution

The fourth proportional to 31,755.20, 47,632.80 and 26,609.60 is: 39,914.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,755.20 : 47,632.80 = 26,609.60 : x
  2. Step 2: Convert to fraction form
    31,755.20/47,632.80 = 26,609.60/x
  3. Step 3: Cross multiply
    31,755.20x = 47,632.80 × 26,609.60
  4. Step 4: Simplify right side
    31,755.20x = 1,267,489,754.88
  5. Step 5: Solve for x
    x = 1,267,489,754.88/31,755.20
  6. Step 6: Final answer
    x = 39,914.40

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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.