Home / 39,374.99-54,336.30-21,470.34

Finding the Fourth Proportional to 39,374.99, 54,336.30 and 21,470.34

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Solution

The fourth proportional to 39,374.99, 54,336.30 and 21,470.34 is: 29,628.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,374.99 : 54,336.30 = 21,470.34 : x
  2. Step 2: Convert to fraction form
    39,374.99/54,336.30 = 21,470.34/x
  3. Step 3: Cross multiply
    39,374.99x = 54,336.30 × 21,470.34
  4. Step 4: Simplify right side
    39,374.99x = 1,166,618,958.59
  5. Step 5: Solve for x
    x = 1,166,618,958.59/39,374.99
  6. Step 6: Final answer
    x = 29,628.43

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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.