Home / 22,109.72-30,511.22-12,038.13

Finding the Fourth Proportional to 22,109.72, 30,511.22 and 12,038.13

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Solution

The fourth proportional to 22,109.72, 30,511.22 and 12,038.13 is: 16,612.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,109.72 : 30,511.22 = 12,038.13 : x
  2. Step 2: Convert to fraction form
    22,109.72/30,511.22 = 12,038.13/x
  3. Step 3: Cross multiply
    22,109.72x = 30,511.22 × 12,038.13
  4. Step 4: Simplify right side
    22,109.72x = 367,298,087.05
  5. Step 5: Solve for x
    x = 367,298,087.05/22,109.72
  6. Step 6: Final answer
    x = 16,612.52

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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.