Home / 21,319.26-31,982.49-6,526.59

Finding the Fourth Proportional to 21,319.26, 31,982.49 and 6,526.59

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Solution

The fourth proportional to 21,319.26, 31,982.49 and 6,526.59 is: 9,790.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,319.26 : 31,982.49 = 6,526.59 : x
  2. Step 2: Convert to fraction form
    21,319.26/31,982.49 = 6,526.59/x
  3. Step 3: Cross multiply
    21,319.26x = 31,982.49 × 6,526.59
  4. Step 4: Simplify right side
    21,319.26x = 208,736,599.41
  5. Step 5: Solve for x
    x = 208,736,599.41/21,319.26
  6. Step 6: Final answer
    x = 9,790.99

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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.