Home / 25,907.88-38,865.46-12,760.36

Finding the Fourth Proportional to 25,907.88, 38,865.46 and 12,760.36

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Solution

The fourth proportional to 25,907.88, 38,865.46 and 12,760.36 is: 19,142.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,907.88 : 38,865.46 = 12,760.36 : x
  2. Step 2: Convert to fraction form
    25,907.88/38,865.46 = 12,760.36/x
  3. Step 3: Cross multiply
    25,907.88x = 38,865.46 × 12,760.36
  4. Step 4: Simplify right side
    25,907.88x = 495,937,261.17
  5. Step 5: Solve for x
    x = 495,937,261.17/25,907.88
  6. Step 6: Final answer
    x = 19,142.33

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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.