Home / 36,784.80-55,031.40-31,908.60

Finding the Fourth Proportional to 36,784.80, 55,031.40 and 31,908.60

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Solution

The fourth proportional to 36,784.80, 55,031.40 and 31,908.60 is: 47,736.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,784.80 : 55,031.40 = 31,908.60 : x
  2. Step 2: Convert to fraction form
    36,784.80/55,031.40 = 31,908.60/x
  3. Step 3: Cross multiply
    36,784.80x = 55,031.40 × 31,908.60
  4. Step 4: Simplify right side
    36,784.80x = 1,755,974,930.04
  5. Step 5: Solve for x
    x = 1,755,974,930.04/36,784.80
  6. Step 6: Final answer
    x = 47,736.43

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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.