Home / 28,076.15-42,114.13-11,432.48

Finding the Fourth Proportional to 28,076.15, 42,114.13 and 11,432.48

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Solution

The fourth proportional to 28,076.15, 42,114.13 and 11,432.48 is: 17,148.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.15 : 42,114.13 = 11,432.48 : x
  2. Step 2: Convert to fraction form
    28,076.15/42,114.13 = 11,432.48/x
  3. Step 3: Cross multiply
    28,076.15x = 42,114.13 × 11,432.48
  4. Step 4: Simplify right side
    28,076.15x = 481,468,709.79
  5. Step 5: Solve for x
    x = 481,468,709.79/28,076.15
  6. Step 6: Final answer
    x = 17,148.67

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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.