Home / 21,295.86-31,943.79-5,713.89

Finding the Fourth Proportional to 21,295.86, 31,943.79 and 5,713.89

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Solution

The fourth proportional to 21,295.86, 31,943.79 and 5,713.89 is: 8,570.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.86 : 31,943.79 = 5,713.89 : x
  2. Step 2: Convert to fraction form
    21,295.86/31,943.79 = 5,713.89/x
  3. Step 3: Cross multiply
    21,295.86x = 31,943.79 × 5,713.89
  4. Step 4: Simplify right side
    21,295.86x = 182,523,302.24
  5. Step 5: Solve for x
    x = 182,523,302.24/21,295.86
  6. Step 6: Final answer
    x = 8,570.84

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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.