Home / 28,723.77-43,086.38-7,947.45

Finding the Fourth Proportional to 28,723.77, 43,086.38 and 7,947.45

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Solution

The fourth proportional to 28,723.77, 43,086.38 and 7,947.45 is: 11,921.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723.77 : 43,086.38 = 7,947.45 : x
  2. Step 2: Convert to fraction form
    28,723.77/43,086.38 = 7,947.45/x
  3. Step 3: Cross multiply
    28,723.77x = 43,086.38 × 7,947.45
  4. Step 4: Simplify right side
    28,723.77x = 342,426,810.99
  5. Step 5: Solve for x
    x = 342,426,810.99/28,723.77
  6. Step 6: Final answer
    x = 11,921.37

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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.