Home / 47,653.83-71,505.14-21,018.39

Finding the Fourth Proportional to 47,653.83, 71,505.14 and 21,018.39

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Solution

The fourth proportional to 47,653.83, 71,505.14 and 21,018.39 is: 31,538.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,653.83 : 71,505.14 = 21,018.39 : x
  2. Step 2: Convert to fraction form
    47,653.83/71,505.14 = 21,018.39/x
  3. Step 3: Cross multiply
    47,653.83x = 71,505.14 × 21,018.39
  4. Step 4: Simplify right side
    47,653.83x = 1,502,922,919.52
  5. Step 5: Solve for x
    x = 1,502,922,919.52/47,653.83
  6. Step 6: Final answer
    x = 31,538.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.