Home / 31,435.36-43,379.93-17,288.21

Finding the Fourth Proportional to 31,435.36, 43,379.93 and 17,288.21

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Solution

The fourth proportional to 31,435.36, 43,379.93 and 17,288.21 is: 23,857.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,435.36 : 43,379.93 = 17,288.21 : x
  2. Step 2: Convert to fraction form
    31,435.36/43,379.93 = 17,288.21/x
  3. Step 3: Cross multiply
    31,435.36x = 43,379.93 × 17,288.21
  4. Step 4: Simplify right side
    31,435.36x = 749,961,339.63
  5. Step 5: Solve for x
    x = 749,961,339.63/31,435.36
  6. Step 6: Final answer
    x = 23,857.25

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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.