Home / 38,670.06-57,890.27-21,086.58

Finding the Fourth Proportional to 38,670.06, 57,890.27 and 21,086.58

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Solution

The fourth proportional to 38,670.06, 57,890.27 and 21,086.58 is: 31,567.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,670.06 : 57,890.27 = 21,086.58 : x
  2. Step 2: Convert to fraction form
    38,670.06/57,890.27 = 21,086.58/x
  3. Step 3: Cross multiply
    38,670.06x = 57,890.27 × 21,086.58
  4. Step 4: Simplify right side
    38,670.06x = 1,220,707,694.44
  5. Step 5: Solve for x
    x = 1,220,707,694.44/38,670.06
  6. Step 6: Final answer
    x = 31,567.26

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1.5x scale

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.