Home / 18,429.60-25,438.44-17,489.28

Finding the Fourth Proportional to 18,429.60, 25,438.44 and 17,489.28

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Solution

The fourth proportional to 18,429.60, 25,438.44 and 17,489.28 is: 24,140.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.60 : 25,438.44 = 17,489.28 : x
  2. Step 2: Convert to fraction form
    18,429.60/25,438.44 = 17,489.28/x
  3. Step 3: Cross multiply
    18,429.60x = 25,438.44 × 17,489.28
  4. Step 4: Simplify right side
    18,429.60x = 444,899,999.92
  5. Step 5: Solve for x
    x = 444,899,999.92/18,429.60
  6. Step 6: Final answer
    x = 24,140.51

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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.