Home / 33,259.78-45,906.21-21,931.32

Finding the Fourth Proportional to 33,259.78, 45,906.21 and 21,931.32

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Solution

The fourth proportional to 33,259.78, 45,906.21 and 21,931.32 is: 30,270.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,259.78 : 45,906.21 = 21,931.32 : x
  2. Step 2: Convert to fraction form
    33,259.78/45,906.21 = 21,931.32/x
  3. Step 3: Cross multiply
    33,259.78x = 45,906.21 × 21,931.32
  4. Step 4: Simplify right side
    33,259.78x = 1,006,783,953.65
  5. Step 5: Solve for x
    x = 1,006,783,953.65/33,259.78
  6. Step 6: Final answer
    x = 30,270.31

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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.