Home / 38,146.69-52,640.32-21,149.94

Finding the Fourth Proportional to 38,146.69, 52,640.32 and 21,149.94

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Solution

The fourth proportional to 38,146.69, 52,640.32 and 21,149.94 is: 29,185.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,146.69 : 52,640.32 = 21,149.94 : x
  2. Step 2: Convert to fraction form
    38,146.69/52,640.32 = 21,149.94/x
  3. Step 3: Cross multiply
    38,146.69x = 52,640.32 × 21,149.94
  4. Step 4: Simplify right side
    38,146.69x = 1,113,339,240.63
  5. Step 5: Solve for x
    x = 1,113,339,240.63/38,146.69
  6. Step 6: Final answer
    x = 29,185.74

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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.