Home / 38,419.56-57,631.14-18,674.58

Finding the Fourth Proportional to 38,419.56, 57,631.14 and 18,674.58

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Solution

The fourth proportional to 38,419.56, 57,631.14 and 18,674.58 is: 28,012.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,419.56 : 57,631.14 = 18,674.58 : x
  2. Step 2: Convert to fraction form
    38,419.56/57,631.14 = 18,674.58/x
  3. Step 3: Cross multiply
    38,419.56x = 57,631.14 × 18,674.58
  4. Step 4: Simplify right side
    38,419.56x = 1,076,237,334.42
  5. Step 5: Solve for x
    x = 1,076,237,334.42/38,419.56
  6. Step 6: Final answer
    x = 28,012.74

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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.