Home / 25,945.11-35,806.95-15,880.23

Finding the Fourth Proportional to 25,945.11, 35,806.95 and 15,880.23

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Solution

The fourth proportional to 25,945.11, 35,806.95 and 15,880.23 is: 21,916.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,945.11 : 35,806.95 = 15,880.23 : x
  2. Step 2: Convert to fraction form
    25,945.11/35,806.95 = 15,880.23/x
  3. Step 3: Cross multiply
    25,945.11x = 35,806.95 × 15,880.23
  4. Step 4: Simplify right side
    25,945.11x = 568,622,601.60
  5. Step 5: Solve for x
    x = 568,622,601.60/25,945.11
  6. Step 6: Final answer
    x = 21,916.37

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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.