Home / 28,161.60-42,240.24-7,384.56

Finding the Fourth Proportional to 28,161.60, 42,240.24 and 7,384.56

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Solution

The fourth proportional to 28,161.60, 42,240.24 and 7,384.56 is: 11,076.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161.60 : 42,240.24 = 7,384.56 : x
  2. Step 2: Convert to fraction form
    28,161.60/42,240.24 = 7,384.56/x
  3. Step 3: Cross multiply
    28,161.60x = 42,240.24 × 7,384.56
  4. Step 4: Simplify right side
    28,161.60x = 311,925,586.69
  5. Step 5: Solve for x
    x = 311,925,586.69/28,161.60
  6. Step 6: Final answer
    x = 11,076.27

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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.