Home / 30,837.24-42,555.96-18,099.54

Finding the Fourth Proportional to 30,837.24, 42,555.96 and 18,099.54

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Solution

The fourth proportional to 30,837.24, 42,555.96 and 18,099.54 is: 24,977.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,837.24 : 42,555.96 = 18,099.54 : x
  2. Step 2: Convert to fraction form
    30,837.24/42,555.96 = 18,099.54/x
  3. Step 3: Cross multiply
    30,837.24x = 42,555.96 × 18,099.54
  4. Step 4: Simplify right side
    30,837.24x = 770,243,300.26
  5. Step 5: Solve for x
    x = 770,243,300.26/30,837.24
  6. Step 6: Final answer
    x = 24,977.70

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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.