Home / 18,217.36-25,087.02-15,826.24

Finding the Fourth Proportional to 18,217.36, 25,087.02 and 15,826.24

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Solution

The fourth proportional to 18,217.36, 25,087.02 and 15,826.24 is: 21,794.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.36 : 25,087.02 = 15,826.24 : x
  2. Step 2: Convert to fraction form
    18,217.36/25,087.02 = 15,826.24/x
  3. Step 3: Cross multiply
    18,217.36x = 25,087.02 × 15,826.24
  4. Step 4: Simplify right side
    18,217.36x = 397,033,199.40
  5. Step 5: Solve for x
    x = 397,033,199.40/18,217.36
  6. Step 6: Final answer
    x = 21,794.22

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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.