Home / 28,836.95-43,251.84-7,778.70

Finding the Fourth Proportional to 28,836.95, 43,251.84 and 7,778.70

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Solution

The fourth proportional to 28,836.95, 43,251.84 and 7,778.70 is: 11,667.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.95 : 43,251.84 = 7,778.70 : x
  2. Step 2: Convert to fraction form
    28,836.95/43,251.84 = 7,778.70/x
  3. Step 3: Cross multiply
    28,836.95x = 43,251.84 × 7,778.70
  4. Step 4: Simplify right side
    28,836.95x = 336,443,087.81
  5. Step 5: Solve for x
    x = 336,443,087.81/28,836.95
  6. Step 6: Final answer
    x = 11,667.08

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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.