Home / 28,171.31-42,263.64-9,195.85

Finding the Fourth Proportional to 28,171.31, 42,263.64 and 9,195.85

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Solution

The fourth proportional to 28,171.31, 42,263.64 and 9,195.85 is: 13,795.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.31 : 42,263.64 = 9,195.85 : x
  2. Step 2: Convert to fraction form
    28,171.31/42,263.64 = 9,195.85/x
  3. Step 3: Cross multiply
    28,171.31x = 42,263.64 × 9,195.85
  4. Step 4: Simplify right side
    28,171.31x = 388,649,988.23
  5. Step 5: Solve for x
    x = 388,649,988.23/28,171.31
  6. Step 6: Final answer
    x = 13,795.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.