Home / 18,340.24-25,292.84-15,513.52

Finding the Fourth Proportional to 18,340.24, 25,292.84 and 15,513.52

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Solution

The fourth proportional to 18,340.24, 25,292.84 and 15,513.52 is: 21,394.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.24 : 25,292.84 = 15,513.52 : x
  2. Step 2: Convert to fraction form
    18,340.24/25,292.84 = 15,513.52/x
  3. Step 3: Cross multiply
    18,340.24x = 25,292.84 × 15,513.52
  4. Step 4: Simplify right side
    18,340.24x = 392,380,979.20
  5. Step 5: Solve for x
    x = 392,380,979.20/18,340.24
  6. Step 6: Final answer
    x = 21,394.54

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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.