Home / 22,243.76-30,699.23-12,812.32

Finding the Fourth Proportional to 22,243.76, 30,699.23 and 12,812.32

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Solution

The fourth proportional to 22,243.76, 30,699.23 and 12,812.32 is: 17,682.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,243.76 : 30,699.23 = 12,812.32 : x
  2. Step 2: Convert to fraction form
    22,243.76/30,699.23 = 12,812.32/x
  3. Step 3: Cross multiply
    22,243.76x = 30,699.23 × 12,812.32
  4. Step 4: Simplify right side
    22,243.76x = 393,328,217.70
  5. Step 5: Solve for x
    x = 393,328,217.70/22,243.76
  6. Step 6: Final answer
    x = 17,682.64

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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.