Home / 31,421.63-43,362.15-17,274.78

Finding the Fourth Proportional to 31,421.63, 43,362.15 and 17,274.78

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Solution

The fourth proportional to 31,421.63, 43,362.15 and 17,274.78 is: 23,839.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.63 : 43,362.15 = 17,274.78 : x
  2. Step 2: Convert to fraction form
    31,421.63/43,362.15 = 17,274.78/x
  3. Step 3: Cross multiply
    31,421.63x = 43,362.15 × 17,274.78
  4. Step 4: Simplify right side
    31,421.63x = 749,071,601.58
  5. Step 5: Solve for x
    x = 749,071,601.58/31,421.63
  6. Step 6: Final answer
    x = 23,839.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.