Home / 31,819.63-43,881.75-21,625.93

Finding the Fourth Proportional to 31,819.63, 43,881.75 and 21,625.93

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Solution

The fourth proportional to 31,819.63, 43,881.75 and 21,625.93 is: 29,823.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,819.63 : 43,881.75 = 21,625.93 : x
  2. Step 2: Convert to fraction form
    31,819.63/43,881.75 = 21,625.93/x
  3. Step 3: Cross multiply
    31,819.63x = 43,881.75 × 21,625.93
  4. Step 4: Simplify right side
    31,819.63x = 948,983,544.07
  5. Step 5: Solve for x
    x = 948,983,544.07/31,819.63
  6. Step 6: Final answer
    x = 29,823.84

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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.