Home / 31,410.20-47,100.45-18,266.60

Finding the Fourth Proportional to 31,410.20, 47,100.45 and 18,266.60

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Solution

The fourth proportional to 31,410.20, 47,100.45 and 18,266.60 is: 27,391.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,410.20 : 47,100.45 = 18,266.60 : x
  2. Step 2: Convert to fraction form
    31,410.20/47,100.45 = 18,266.60/x
  3. Step 3: Cross multiply
    31,410.20x = 47,100.45 × 18,266.60
  4. Step 4: Simplify right side
    31,410.20x = 860,365,079.97
  5. Step 5: Solve for x
    x = 860,365,079.97/31,410.20
  6. Step 6: Final answer
    x = 27,391.26

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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.