Home / 17,038.40-25,579.68-13,145.60

Finding the Fourth Proportional to 17,038.40, 25,579.68 and 13,145.60

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Solution

The fourth proportional to 17,038.40, 25,579.68 and 13,145.60 is: 19,735.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,038.40 : 25,579.68 = 13,145.60 : x
  2. Step 2: Convert to fraction form
    17,038.40/25,579.68 = 13,145.60/x
  3. Step 3: Cross multiply
    17,038.40x = 25,579.68 × 13,145.60
  4. Step 4: Simplify right side
    17,038.40x = 336,260,241.41
  5. Step 5: Solve for x
    x = 336,260,241.41/17,038.40
  6. Step 6: Final answer
    x = 19,735.44

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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.