Home / 42,007.26-57,970-23,144.78

Finding the Fourth Proportional to 42,007.26, 57,970 and 23,144.78

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Solution

The fourth proportional to 42,007.26, 57,970 and 23,144.78 is: 31,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,007.26 : 57,970 = 23,144.78 : x
  2. Step 2: Convert to fraction form
    42,007.26/57,970 = 23,144.78/x
  3. Step 3: Cross multiply
    42,007.26x = 57,970 × 23,144.78
  4. Step 4: Simplify right side
    42,007.26x = 1,341,702,896.60
  5. Step 5: Solve for x
    x = 1,341,702,896.60/42,007.26
  6. Step 6: Final answer
    x = 31,939.79

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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.