Home / 47,485.98-71,236.80-17,906.40

Finding the Fourth Proportional to 47,485.98, 71,236.80 and 17,906.40

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Solution

The fourth proportional to 47,485.98, 71,236.80 and 17,906.40 is: 26,862.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,485.98 : 71,236.80 = 17,906.40 : x
  2. Step 2: Convert to fraction form
    47,485.98/71,236.80 = 17,906.40/x
  3. Step 3: Cross multiply
    47,485.98x = 71,236.80 × 17,906.40
  4. Step 4: Simplify right side
    47,485.98x = 1,275,594,635.52
  5. Step 5: Solve for x
    x = 1,275,594,635.52/47,485.98
  6. Step 6: Final answer
    x = 26,862.55

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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.