Home / 38,876.77-53,650.17-21,881.35

Finding the Fourth Proportional to 38,876.77, 53,650.17 and 21,881.35

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Solution

The fourth proportional to 38,876.77, 53,650.17 and 21,881.35 is: 30,196.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,876.77 : 53,650.17 = 21,881.35 : x
  2. Step 2: Convert to fraction form
    38,876.77/53,650.17 = 21,881.35/x
  3. Step 3: Cross multiply
    38,876.77x = 53,650.17 × 21,881.35
  4. Step 4: Simplify right side
    38,876.77x = 1,173,938,147.33
  5. Step 5: Solve for x
    x = 1,173,938,147.33/38,876.77
  6. Step 6: Final answer
    x = 30,196.39

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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.