Home / 18,357.44-25,316.96-15,537.92

Finding the Fourth Proportional to 18,357.44, 25,316.96 and 15,537.92

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Solution

The fourth proportional to 18,357.44, 25,316.96 and 15,537.92 is: 21,428.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,357.44 : 25,316.96 = 15,537.92 : x
  2. Step 2: Convert to fraction form
    18,357.44/25,316.96 = 15,537.92/x
  3. Step 3: Cross multiply
    18,357.44x = 25,316.96 × 15,537.92
  4. Step 4: Simplify right side
    18,357.44x = 393,372,899.12
  5. Step 5: Solve for x
    x = 393,372,899.12/18,357.44
  6. Step 6: Final answer
    x = 21,428.53

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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.