Home / 39,376.46-54,340.65-21,471.81

Finding the Fourth Proportional to 39,376.46, 54,340.65 and 21,471.81

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Solution

The fourth proportional to 39,376.46, 54,340.65 and 21,471.81 is: 29,631.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,376.46 : 54,340.65 = 21,471.81 : x
  2. Step 2: Convert to fraction form
    39,376.46/54,340.65 = 21,471.81/x
  3. Step 3: Cross multiply
    39,376.46x = 54,340.65 × 21,471.81
  4. Step 4: Simplify right side
    39,376.46x = 1,166,792,112.08
  5. Step 5: Solve for x
    x = 1,166,792,112.08/39,376.46
  6. Step 6: Final answer
    x = 29,631.72

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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.