Home / 31,669.64-43,699.16-18,241.46

Finding the Fourth Proportional to 31,669.64, 43,699.16 and 18,241.46

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Solution

The fourth proportional to 31,669.64, 43,699.16 and 18,241.46 is: 25,170.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,669.64 : 43,699.16 = 18,241.46 : x
  2. Step 2: Convert to fraction form
    31,669.64/43,699.16 = 18,241.46/x
  3. Step 3: Cross multiply
    31,669.64x = 43,699.16 × 18,241.46
  4. Step 4: Simplify right side
    31,669.64x = 797,136,479.17
  5. Step 5: Solve for x
    x = 797,136,479.17/31,669.64
  6. Step 6: Final answer
    x = 25,170.37

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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.