Home / 38,851.83-53,611.56-21,853.35

Finding the Fourth Proportional to 38,851.83, 53,611.56 and 21,853.35

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Solution

The fourth proportional to 38,851.83, 53,611.56 and 21,853.35 is: 30,155.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,851.83 : 53,611.56 = 21,853.35 : x
  2. Step 2: Convert to fraction form
    38,851.83/53,611.56 = 21,853.35/x
  3. Step 3: Cross multiply
    38,851.83x = 53,611.56 × 21,853.35
  4. Step 4: Simplify right side
    38,851.83x = 1,171,592,184.73
  5. Step 5: Solve for x
    x = 1,171,592,184.73/38,851.83
  6. Step 6: Final answer
    x = 30,155.39

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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.