Home / 28,163.69-38,863.23-16,830.93

Finding the Fourth Proportional to 28,163.69, 38,863.23 and 16,830.93

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Solution

The fourth proportional to 28,163.69, 38,863.23 and 16,830.93 is: 23,225.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,163.69 : 38,863.23 = 16,830.93 : x
  2. Step 2: Convert to fraction form
    28,163.69/38,863.23 = 16,830.93/x
  3. Step 3: Cross multiply
    28,163.69x = 38,863.23 × 16,830.93
  4. Step 4: Simplify right side
    28,163.69x = 654,104,303.70
  5. Step 5: Solve for x
    x = 654,104,303.70/28,163.69
  6. Step 6: Final answer
    x = 23,225.10

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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.