Home / 28,027.19-42,039.56-6,966.78

Finding the Fourth Proportional to 28,027.19, 42,039.56 and 6,966.78

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Solution

The fourth proportional to 28,027.19, 42,039.56 and 6,966.78 is: 10,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,027.19 : 42,039.56 = 6,966.78 : x
  2. Step 2: Convert to fraction form
    28,027.19/42,039.56 = 6,966.78/x
  3. Step 3: Cross multiply
    28,027.19x = 42,039.56 × 6,966.78
  4. Step 4: Simplify right side
    28,027.19x = 292,880,383.23
  5. Step 5: Solve for x
    x = 292,880,383.23/28,027.19
  6. Step 6: Final answer
    x = 10,449.87

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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.