Home / 28,255.47-42,382.88-6,908.37

Finding the Fourth Proportional to 28,255.47, 42,382.88 and 6,908.37

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Solution

The fourth proportional to 28,255.47, 42,382.88 and 6,908.37 is: 10,362.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.47 : 42,382.88 = 6,908.37 : x
  2. Step 2: Convert to fraction form
    28,255.47/42,382.88 = 6,908.37/x
  3. Step 3: Cross multiply
    28,255.47x = 42,382.88 × 6,908.37
  4. Step 4: Simplify right side
    28,255.47x = 292,796,616.71
  5. Step 5: Solve for x
    x = 292,796,616.71/28,255.47
  6. Step 6: Final answer
    x = 10,362.48

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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.