Home / 18,370.08-25,328.43-15,532.38

Finding the Fourth Proportional to 18,370.08, 25,328.43 and 15,532.38

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Solution

The fourth proportional to 18,370.08, 25,328.43 and 15,532.38 is: 21,415.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,370.08 : 25,328.43 = 15,532.38 : x
  2. Step 2: Convert to fraction form
    18,370.08/25,328.43 = 15,532.38/x
  3. Step 3: Cross multiply
    18,370.08x = 25,328.43 × 15,532.38
  4. Step 4: Simplify right side
    18,370.08x = 393,410,799.56
  5. Step 5: Solve for x
    x = 393,410,799.56/18,370.08
  6. Step 6: Final answer
    x = 21,415.85

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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.