Home / 28,078.46-42,117.51-7,018.39

Finding the Fourth Proportional to 28,078.46, 42,117.51 and 7,018.39

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Solution

The fourth proportional to 28,078.46, 42,117.51 and 7,018.39 is: 10,527.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078.46 : 42,117.51 = 7,018.39 : x
  2. Step 2: Convert to fraction form
    28,078.46/42,117.51 = 7,018.39/x
  3. Step 3: Cross multiply
    28,078.46x = 42,117.51 × 7,018.39
  4. Step 4: Simplify right side
    28,078.46x = 295,597,128.55
  5. Step 5: Solve for x
    x = 295,597,128.55/28,078.46
  6. Step 6: Final answer
    x = 10,527.54

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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.