Home / 21,745.08-30,008.33-12,184.99

Finding the Fourth Proportional to 21,745.08, 30,008.33 and 12,184.99

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Solution

The fourth proportional to 21,745.08, 30,008.33 and 12,184.99 is: 16,815.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,745.08 : 30,008.33 = 12,184.99 : x
  2. Step 2: Convert to fraction form
    21,745.08/30,008.33 = 12,184.99/x
  3. Step 3: Cross multiply
    21,745.08x = 30,008.33 × 12,184.99
  4. Step 4: Simplify right side
    21,745.08x = 365,651,065.02
  5. Step 5: Solve for x
    x = 365,651,065.02/21,745.08
  6. Step 6: Final answer
    x = 16,815.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.