Home / 28,857.12-43,281.53-7,798.36

Finding the Fourth Proportional to 28,857.12, 43,281.53 and 7,798.36

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Solution

The fourth proportional to 28,857.12, 43,281.53 and 7,798.36 is: 11,696.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,857.12 : 43,281.53 = 7,798.36 : x
  2. Step 2: Convert to fraction form
    28,857.12/43,281.53 = 7,798.36/x
  3. Step 3: Cross multiply
    28,857.12x = 43,281.53 × 7,798.36
  4. Step 4: Simplify right side
    28,857.12x = 337,525,087.12
  5. Step 5: Solve for x
    x = 337,525,087.12/28,857.12
  6. Step 6: Final answer
    x = 11,696.42

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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.