Home / 28,776.06-43,162.65-7,999.74

Finding the Fourth Proportional to 28,776.06, 43,162.65 and 7,999.74

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Solution

The fourth proportional to 28,776.06, 43,162.65 and 7,999.74 is: 11,999.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.06 : 43,162.65 = 7,999.74 : x
  2. Step 2: Convert to fraction form
    28,776.06/43,162.65 = 7,999.74/x
  3. Step 3: Cross multiply
    28,776.06x = 43,162.65 × 7,999.74
  4. Step 4: Simplify right side
    28,776.06x = 345,289,977.71
  5. Step 5: Solve for x
    x = 345,289,977.71/28,776.06
  6. Step 6: Final answer
    x = 11,999.21

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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.