Home / 28,977.96-43,480.74-14,178.78

Finding the Fourth Proportional to 28,977.96, 43,480.74 and 14,178.78

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Solution

The fourth proportional to 28,977.96, 43,480.74 and 14,178.78 is: 21,274.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.96 : 43,480.74 = 14,178.78 : x
  2. Step 2: Convert to fraction form
    28,977.96/43,480.74 = 14,178.78/x
  3. Step 3: Cross multiply
    28,977.96x = 43,480.74 × 14,178.78
  4. Step 4: Simplify right side
    28,977.96x = 616,503,846.70
  5. Step 5: Solve for x
    x = 616,503,846.70/28,977.96
  6. Step 6: Final answer
    x = 21,274.92

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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.