Home / 21,032.58-31,594.68-12,716.51

Finding the Fourth Proportional to 21,032.58, 31,594.68 and 12,716.51

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Solution

The fourth proportional to 21,032.58, 31,594.68 and 12,716.51 is: 19,102.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032.58 : 31,594.68 = 12,716.51 : x
  2. Step 2: Convert to fraction form
    21,032.58/31,594.68 = 12,716.51/x
  3. Step 3: Cross multiply
    21,032.58x = 31,594.68 × 12,716.51
  4. Step 4: Simplify right side
    21,032.58x = 401,774,143.15
  5. Step 5: Solve for x
    x = 401,774,143.15/21,032.58
  6. Step 6: Final answer
    x = 19,102.47

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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.