Home / 38,930.76-53,661.33-30,418.02

Finding the Fourth Proportional to 38,930.76, 53,661.33 and 30,418.02

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Solution

The fourth proportional to 38,930.76, 53,661.33 and 30,418.02 is: 41,927.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,930.76 : 53,661.33 = 30,418.02 : x
  2. Step 2: Convert to fraction form
    38,930.76/53,661.33 = 30,418.02/x
  3. Step 3: Cross multiply
    38,930.76x = 53,661.33 × 30,418.02
  4. Step 4: Simplify right side
    38,930.76x = 1,632,271,409.17
  5. Step 5: Solve for x
    x = 1,632,271,409.17/38,930.76
  6. Step 6: Final answer
    x = 41,927.55

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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.