Home / 35,905.81-49,542.78-21,750.43

Finding the Fourth Proportional to 35,905.81, 49,542.78 and 21,750.43

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Solution

The fourth proportional to 35,905.81, 49,542.78 and 21,750.43 is: 30,011.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,905.81 : 49,542.78 = 21,750.43 : x
  2. Step 2: Convert to fraction form
    35,905.81/49,542.78 = 21,750.43/x
  3. Step 3: Cross multiply
    35,905.81x = 49,542.78 × 21,750.43
  4. Step 4: Simplify right side
    35,905.81x = 1,077,576,768.40
  5. Step 5: Solve for x
    x = 1,077,576,768.40/35,905.81
  6. Step 6: Final answer
    x = 30,011.21

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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.