Home / 39,297.54-54,230.04-21,392.68

Finding the Fourth Proportional to 39,297.54, 54,230.04 and 21,392.68

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Solution

The fourth proportional to 39,297.54, 54,230.04 and 21,392.68 is: 29,521.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,297.54 : 54,230.04 = 21,392.68 : x
  2. Step 2: Convert to fraction form
    39,297.54/54,230.04 = 21,392.68/x
  3. Step 3: Cross multiply
    39,297.54x = 54,230.04 × 21,392.68
  4. Step 4: Simplify right side
    39,297.54x = 1,160,125,892.11
  5. Step 5: Solve for x
    x = 1,160,125,892.11/39,297.54
  6. Step 6: Final answer
    x = 29,521.59

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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.