Home / 30,162.51-41,625.68-18,838.71

Finding the Fourth Proportional to 30,162.51, 41,625.68 and 18,838.71

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Solution

The fourth proportional to 30,162.51, 41,625.68 and 18,838.71 is: 25,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,162.51 : 41,625.68 = 18,838.71 : x
  2. Step 2: Convert to fraction form
    30,162.51/41,625.68 = 18,838.71/x
  3. Step 3: Cross multiply
    30,162.51x = 41,625.68 × 18,838.71
  4. Step 4: Simplify right side
    30,162.51x = 784,174,019.88
  5. Step 5: Solve for x
    x = 784,174,019.88/30,162.51
  6. Step 6: Final answer
    x = 25,998.30

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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.