Home / 18,735.60-25,867.80-16,739.76

Finding the Fourth Proportional to 18,735.60, 25,867.80 and 16,739.76

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Solution

The fourth proportional to 18,735.60, 25,867.80 and 16,739.76 is: 23,112.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.60 : 25,867.80 = 16,739.76 : x
  2. Step 2: Convert to fraction form
    18,735.60/25,867.80 = 16,739.76/x
  3. Step 3: Cross multiply
    18,735.60x = 25,867.80 × 16,739.76
  4. Step 4: Simplify right side
    18,735.60x = 433,020,763.73
  5. Step 5: Solve for x
    x = 433,020,763.73/18,735.60
  6. Step 6: Final answer
    x = 23,112.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.