Home / 21,012.60-31,511.61-6,217.59

Finding the Fourth Proportional to 21,012.60, 31,511.61 and 6,217.59

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Solution

The fourth proportional to 21,012.60, 31,511.61 and 6,217.59 is: 9,324.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,012.60 : 31,511.61 = 6,217.59 : x
  2. Step 2: Convert to fraction form
    21,012.60/31,511.61 = 6,217.59/x
  3. Step 3: Cross multiply
    21,012.60x = 31,511.61 × 6,217.59
  4. Step 4: Simplify right side
    21,012.60x = 195,926,271.22
  5. Step 5: Solve for x
    x = 195,926,271.22/21,012.60
  6. Step 6: Final answer
    x = 9,324.23

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1.5x scale

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.