Home / 39,329.39-54,274.30-21,424.41

Finding the Fourth Proportional to 39,329.39, 54,274.30 and 21,424.41

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Solution

The fourth proportional to 39,329.39, 54,274.30 and 21,424.41 is: 29,565.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,329.39 : 54,274.30 = 21,424.41 : x
  2. Step 2: Convert to fraction form
    39,329.39/54,274.30 = 21,424.41/x
  3. Step 3: Cross multiply
    39,329.39x = 54,274.30 × 21,424.41
  4. Step 4: Simplify right side
    39,329.39x = 1,162,794,802.10
  5. Step 5: Solve for x
    x = 1,162,794,802.10/39,329.39
  6. Step 6: Final answer
    x = 29,565.54

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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.