Home / 22,389.22-30,897.12-12,317.44

Finding the Fourth Proportional to 22,389.22, 30,897.12 and 12,317.44

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Solution

The fourth proportional to 22,389.22, 30,897.12 and 12,317.44 is: 16,998.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,389.22 : 30,897.12 = 12,317.44 : x
  2. Step 2: Convert to fraction form
    22,389.22/30,897.12 = 12,317.44/x
  3. Step 3: Cross multiply
    22,389.22x = 30,897.12 × 12,317.44
  4. Step 4: Simplify right side
    22,389.22x = 380,573,499.02
  5. Step 5: Solve for x
    x = 380,573,499.02/22,389.22
  6. Step 6: Final answer
    x = 16,998.07

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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.