Home / 39,376.43-54,339.36-21,472.39

Finding the Fourth Proportional to 39,376.43, 54,339.36 and 21,472.39

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Solution

The fourth proportional to 39,376.43, 54,339.36 and 21,472.39 is: 29,631.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,376.43 : 54,339.36 = 21,472.39 : x
  2. Step 2: Convert to fraction form
    39,376.43/54,339.36 = 21,472.39/x
  3. Step 3: Cross multiply
    39,376.43x = 54,339.36 × 21,472.39
  4. Step 4: Simplify right side
    39,376.43x = 1,166,795,917.67
  5. Step 5: Solve for x
    x = 1,166,795,917.67/39,376.43
  6. Step 6: Final answer
    x = 29,631.84

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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.