Home / 22,471.41-31,010.64-12,400.15

Finding the Fourth Proportional to 22,471.41, 31,010.64 and 12,400.15

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Solution

The fourth proportional to 22,471.41, 31,010.64 and 12,400.15 is: 17,112.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,471.41 : 31,010.64 = 12,400.15 : x
  2. Step 2: Convert to fraction form
    22,471.41/31,010.64 = 12,400.15/x
  3. Step 3: Cross multiply
    22,471.41x = 31,010.64 × 12,400.15
  4. Step 4: Simplify right side
    22,471.41x = 384,536,370.54
  5. Step 5: Solve for x
    x = 384,536,370.54/22,471.41
  6. Step 6: Final answer
    x = 17,112.25

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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.