Home / 28,085.11-42,127.67-19,293.37

Finding the Fourth Proportional to 28,085.11, 42,127.67 and 19,293.37

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Solution

The fourth proportional to 28,085.11, 42,127.67 and 19,293.37 is: 28,940.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.11 : 42,127.67 = 19,293.37 : x
  2. Step 2: Convert to fraction form
    28,085.11/42,127.67 = 19,293.37/x
  3. Step 3: Cross multiply
    28,085.11x = 42,127.67 × 19,293.37
  4. Step 4: Simplify right side
    28,085.11x = 812,784,724.55
  5. Step 5: Solve for x
    x = 812,784,724.55/28,085.11
  6. Step 6: Final answer
    x = 28,940.06

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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.