Home / 30,781.79-46,156.27-15,975.80

Finding the Fourth Proportional to 30,781.79, 46,156.27 and 15,975.80

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Solution

The fourth proportional to 30,781.79, 46,156.27 and 15,975.80 is: 23,955.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,781.79 : 46,156.27 = 15,975.80 : x
  2. Step 2: Convert to fraction form
    30,781.79/46,156.27 = 15,975.80/x
  3. Step 3: Cross multiply
    30,781.79x = 46,156.27 × 15,975.80
  4. Step 4: Simplify right side
    30,781.79x = 737,383,067.55
  5. Step 5: Solve for x
    x = 737,383,067.55/30,781.79
  6. Step 6: Final answer
    x = 23,955.18

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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.