Home / 28,756.38-43,119.45-16,913.78

Finding the Fourth Proportional to 28,756.38, 43,119.45 and 16,913.78

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Solution

The fourth proportional to 28,756.38, 43,119.45 and 16,913.78 is: 25,361.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.38 : 43,119.45 = 16,913.78 : x
  2. Step 2: Convert to fraction form
    28,756.38/43,119.45 = 16,913.78/x
  3. Step 3: Cross multiply
    28,756.38x = 43,119.45 × 16,913.78
  4. Step 4: Simplify right side
    28,756.38x = 729,312,675.42
  5. Step 5: Solve for x
    x = 729,312,675.42/28,756.38
  6. Step 6: Final answer
    x = 25,361.77

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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.