Home / 38,949.59-53,748.87-21,957.37

Finding the Fourth Proportional to 38,949.59, 53,748.87 and 21,957.37

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Solution

The fourth proportional to 38,949.59, 53,748.87 and 21,957.37 is: 30,300.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,949.59 : 53,748.87 = 21,957.37 : x
  2. Step 2: Convert to fraction form
    38,949.59/53,748.87 = 21,957.37/x
  3. Step 3: Cross multiply
    38,949.59x = 53,748.87 × 21,957.37
  4. Step 4: Simplify right side
    38,949.59x = 1,180,183,825.67
  5. Step 5: Solve for x
    x = 1,180,183,825.67/38,949.59
  6. Step 6: Final answer
    x = 30,300.29

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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.