Home / 18,290.58-25,242.87-13,190.31

Finding the Fourth Proportional to 18,290.58, 25,242.87 and 13,190.31

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Solution

The fourth proportional to 18,290.58, 25,242.87 and 13,190.31 is: 18,203.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.58 : 25,242.87 = 13,190.31 : x
  2. Step 2: Convert to fraction form
    18,290.58/25,242.87 = 13,190.31/x
  3. Step 3: Cross multiply
    18,290.58x = 25,242.87 × 13,190.31
  4. Step 4: Simplify right side
    18,290.58x = 332,961,280.59
  5. Step 5: Solve for x
    x = 332,961,280.59/18,290.58
  6. Step 6: Final answer
    x = 18,203.98

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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.