Home / 31,388.06-43,314.36-17,240.06

Finding the Fourth Proportional to 31,388.06, 43,314.36 and 17,240.06

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Solution

The fourth proportional to 31,388.06, 43,314.36 and 17,240.06 is: 23,790.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,388.06 : 43,314.36 = 17,240.06 : x
  2. Step 2: Convert to fraction form
    31,388.06/43,314.36 = 17,240.06/x
  3. Step 3: Cross multiply
    31,388.06x = 43,314.36 × 17,240.06
  4. Step 4: Simplify right side
    31,388.06x = 746,742,165.26
  5. Step 5: Solve for x
    x = 746,742,165.26/31,388.06
  6. Step 6: Final answer
    x = 23,790.64

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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.