Home / 21,004.58-31,513.01-6,213.89

Finding the Fourth Proportional to 21,004.58, 31,513.01 and 6,213.89

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Solution

The fourth proportional to 21,004.58, 31,513.01 and 6,213.89 is: 9,322.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004.58 : 31,513.01 = 6,213.89 : x
  2. Step 2: Convert to fraction form
    21,004.58/31,513.01 = 6,213.89/x
  3. Step 3: Cross multiply
    21,004.58x = 31,513.01 × 6,213.89
  4. Step 4: Simplify right side
    21,004.58x = 195,818,377.71
  5. Step 5: Solve for x
    x = 195,818,377.71/21,004.58
  6. Step 6: Final answer
    x = 9,322.65

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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.