Home / 21,010.29-31,511.03-6,219.33

Finding the Fourth Proportional to 21,010.29, 31,511.03 and 6,219.33

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Solution

The fourth proportional to 21,010.29, 31,511.03 and 6,219.33 is: 9,327.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010.29 : 31,511.03 = 6,219.33 : x
  2. Step 2: Convert to fraction form
    21,010.29/31,511.03 = 6,219.33/x
  3. Step 3: Cross multiply
    21,010.29x = 31,511.03 × 6,219.33
  4. Step 4: Simplify right side
    21,010.29x = 195,977,522.20
  5. Step 5: Solve for x
    x = 195,977,522.20/21,010.29
  6. Step 6: Final answer
    x = 9,327.69

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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.