Home / 32,942.46-45,429.47-21,621.77

Finding the Fourth Proportional to 32,942.46, 45,429.47 and 21,621.77

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Solution

The fourth proportional to 32,942.46, 45,429.47 and 21,621.77 is: 29,817.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,942.46 : 45,429.47 = 21,621.77 : x
  2. Step 2: Convert to fraction form
    32,942.46/45,429.47 = 21,621.77/x
  3. Step 3: Cross multiply
    32,942.46x = 45,429.47 × 21,621.77
  4. Step 4: Simplify right side
    32,942.46x = 982,265,551.56
  5. Step 5: Solve for x
    x = 982,265,551.56/32,942.46
  6. Step 6: Final answer
    x = 29,817.61

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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.