Home / 38,782.56-58,125.06-21,012.54

Finding the Fourth Proportional to 38,782.56, 58,125.06 and 21,012.54

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Solution

The fourth proportional to 38,782.56, 58,125.06 and 21,012.54 is: 31,492.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,782.56 : 58,125.06 = 21,012.54 : x
  2. Step 2: Convert to fraction form
    38,782.56/58,125.06 = 21,012.54/x
  3. Step 3: Cross multiply
    38,782.56x = 58,125.06 × 21,012.54
  4. Step 4: Simplify right side
    38,782.56x = 1,221,355,148.25
  5. Step 5: Solve for x
    x = 1,221,355,148.25/38,782.56
  6. Step 6: Final answer
    x = 31,492.38

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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.