Home / 35,203.15-52,788.94-20,978.34

Finding the Fourth Proportional to 35,203.15, 52,788.94 and 20,978.34

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Solution

The fourth proportional to 35,203.15, 52,788.94 and 20,978.34 is: 31,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,203.15 : 52,788.94 = 20,978.34 : x
  2. Step 2: Convert to fraction form
    35,203.15/52,788.94 = 20,978.34/x
  3. Step 3: Cross multiply
    35,203.15x = 52,788.94 × 20,978.34
  4. Step 4: Simplify right side
    35,203.15x = 1,107,424,331.56
  5. Step 5: Solve for x
    x = 1,107,424,331.56/35,203.15
  6. Step 6: Final answer
    x = 31,458.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.