Home / 33,939.78-46,830.39-19,408.57

Finding the Fourth Proportional to 33,939.78, 46,830.39 and 19,408.57

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Solution

The fourth proportional to 33,939.78, 46,830.39 and 19,408.57 is: 26,780.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,939.78 : 46,830.39 = 19,408.57 : x
  2. Step 2: Convert to fraction form
    33,939.78/46,830.39 = 19,408.57/x
  3. Step 3: Cross multiply
    33,939.78x = 46,830.39 × 19,408.57
  4. Step 4: Simplify right side
    33,939.78x = 908,911,085.18
  5. Step 5: Solve for x
    x = 908,911,085.18/33,939.78
  6. Step 6: Final answer
    x = 26,780.11

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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.