Home / 35,821.80-49,431.60-19,905.30

Finding the Fourth Proportional to 35,821.80, 49,431.60 and 19,905.30

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Solution

The fourth proportional to 35,821.80, 49,431.60 and 19,905.30 is: 27,467.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,821.80 : 49,431.60 = 19,905.30 : x
  2. Step 2: Convert to fraction form
    35,821.80/49,431.60 = 19,905.30/x
  3. Step 3: Cross multiply
    35,821.80x = 49,431.60 × 19,905.30
  4. Step 4: Simplify right side
    35,821.80x = 983,950,827.48
  5. Step 5: Solve for x
    x = 983,950,827.48/35,821.80
  6. Step 6: Final answer
    x = 27,467.93

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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.