Home / 22,389.09-30,896.95-12,317.32

Finding the Fourth Proportional to 22,389.09, 30,896.95 and 12,317.32

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Solution

The fourth proportional to 22,389.09, 30,896.95 and 12,317.32 is: 16,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,389.09 : 30,896.95 = 12,317.32 : x
  2. Step 2: Convert to fraction form
    22,389.09/30,896.95 = 12,317.32/x
  3. Step 3: Cross multiply
    22,389.09x = 30,896.95 × 12,317.32
  4. Step 4: Simplify right side
    22,389.09x = 380,567,542.93
  5. Step 5: Solve for x
    x = 380,567,542.93/22,389.09
  6. Step 6: Final answer
    x = 16,997.90

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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.