Home / 43,229.32-64,821.45-20,409.34

Finding the Fourth Proportional to 43,229.32, 64,821.45 and 20,409.34

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Solution

The fourth proportional to 43,229.32, 64,821.45 and 20,409.34 is: 30,603.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,229.32 : 64,821.45 = 20,409.34 : x
  2. Step 2: Convert to fraction form
    43,229.32/64,821.45 = 20,409.34/x
  3. Step 3: Cross multiply
    43,229.32x = 64,821.45 × 20,409.34
  4. Step 4: Simplify right side
    43,229.32x = 1,322,963,012.34
  5. Step 5: Solve for x
    x = 1,322,963,012.34/43,229.32
  6. Step 6: Final answer
    x = 30,603.37

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1.5x scale

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.