Home / 21,083.90-31,625.85-6,303.20

Finding the Fourth Proportional to 21,083.90, 31,625.85 and 6,303.20

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Solution

The fourth proportional to 21,083.90, 31,625.85 and 6,303.20 is: 9,454.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.90 : 31,625.85 = 6,303.20 : x
  2. Step 2: Convert to fraction form
    21,083.90/31,625.85 = 6,303.20/x
  3. Step 3: Cross multiply
    21,083.90x = 31,625.85 × 6,303.20
  4. Step 4: Simplify right side
    21,083.90x = 199,344,136.78
  5. Step 5: Solve for x
    x = 199,344,136.78/21,083.90
  6. Step 6: Final answer
    x = 9,454.81

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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.