Home / 17,345.70-25,979.64-13,438.26

Finding the Fourth Proportional to 17,345.70, 25,979.64 and 13,438.26

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Solution

The fourth proportional to 17,345.70, 25,979.64 and 13,438.26 is: 20,127.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,345.70 : 25,979.64 = 13,438.26 : x
  2. Step 2: Convert to fraction form
    17,345.70/25,979.64 = 13,438.26/x
  3. Step 3: Cross multiply
    17,345.70x = 25,979.64 × 13,438.26
  4. Step 4: Simplify right side
    17,345.70x = 349,121,157.03
  5. Step 5: Solve for x
    x = 349,121,157.03/17,345.70
  6. Step 6: Final answer
    x = 20,127.25

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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.