Home / 25,138.08-34,689.60-13,960.80

Finding the Fourth Proportional to 25,138.08, 34,689.60 and 13,960.80

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Solution

The fourth proportional to 25,138.08, 34,689.60 and 13,960.80 is: 19,265.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,138.08 : 34,689.60 = 13,960.80 : x
  2. Step 2: Convert to fraction form
    25,138.08/34,689.60 = 13,960.80/x
  3. Step 3: Cross multiply
    25,138.08x = 34,689.60 × 13,960.80
  4. Step 4: Simplify right side
    25,138.08x = 484,294,567.68
  5. Step 5: Solve for x
    x = 484,294,567.68/25,138.08
  6. Step 6: Final answer
    x = 19,265.38

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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.