Home / 35,811.45-49,420.26-19,895.90

Finding the Fourth Proportional to 35,811.45, 49,420.26 and 19,895.90

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Solution

The fourth proportional to 35,811.45, 49,420.26 and 19,895.90 is: 27,456.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,811.45 : 49,420.26 = 19,895.90 : x
  2. Step 2: Convert to fraction form
    35,811.45/49,420.26 = 19,895.90/x
  3. Step 3: Cross multiply
    35,811.45x = 49,420.26 × 19,895.90
  4. Step 4: Simplify right side
    35,811.45x = 983,260,303.83
  5. Step 5: Solve for x
    x = 983,260,303.83/35,811.45
  6. Step 6: Final answer
    x = 27,456.59

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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.