Home / 28,768.61-43,149.78-7,710.72

Finding the Fourth Proportional to 28,768.61, 43,149.78 and 7,710.72

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Solution

The fourth proportional to 28,768.61, 43,149.78 and 7,710.72 is: 11,565.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.61 : 43,149.78 = 7,710.72 : x
  2. Step 2: Convert to fraction form
    28,768.61/43,149.78 = 7,710.72/x
  3. Step 3: Cross multiply
    28,768.61x = 43,149.78 × 7,710.72
  4. Step 4: Simplify right side
    28,768.61x = 332,715,871.64
  5. Step 5: Solve for x
    x = 332,715,871.64/28,768.61
  6. Step 6: Final answer
    x = 11,565.24

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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.