Home / 38,438.21-53,045.66-21,442.33

Finding the Fourth Proportional to 38,438.21, 53,045.66 and 21,442.33

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Solution

The fourth proportional to 38,438.21, 53,045.66 and 21,442.33 is: 29,590.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,438.21 : 53,045.66 = 21,442.33 : x
  2. Step 2: Convert to fraction form
    38,438.21/53,045.66 = 21,442.33/x
  3. Step 3: Cross multiply
    38,438.21x = 53,045.66 × 21,442.33
  4. Step 4: Simplify right side
    38,438.21x = 1,137,422,467.78
  5. Step 5: Solve for x
    x = 1,137,422,467.78/38,438.21
  6. Step 6: Final answer
    x = 29,590.94

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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.