Home / 38,835.41-53,591.58-21,840.39

Finding the Fourth Proportional to 38,835.41, 53,591.58 and 21,840.39

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Solution

The fourth proportional to 38,835.41, 53,591.58 and 21,840.39 is: 30,139.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,835.41 : 53,591.58 = 21,840.39 : x
  2. Step 2: Convert to fraction form
    38,835.41/53,591.58 = 21,840.39/x
  3. Step 3: Cross multiply
    38,835.41x = 53,591.58 × 21,840.39
  4. Step 4: Simplify right side
    38,835.41x = 1,170,461,007.92
  5. Step 5: Solve for x
    x = 1,170,461,007.92/38,835.41
  6. Step 6: Final answer
    x = 30,139.02

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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.