Home / 28,255.59-42,383.07-6,908.51

Finding the Fourth Proportional to 28,255.59, 42,383.07 and 6,908.51

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Solution

The fourth proportional to 28,255.59, 42,383.07 and 6,908.51 is: 10,362.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.59 : 42,383.07 = 6,908.51 : x
  2. Step 2: Convert to fraction form
    28,255.59/42,383.07 = 6,908.51/x
  3. Step 3: Cross multiply
    28,255.59x = 42,383.07 × 6,908.51
  4. Step 4: Simplify right side
    28,255.59x = 292,803,968.88
  5. Step 5: Solve for x
    x = 292,803,968.88/28,255.59
  6. Step 6: Final answer
    x = 10,362.69

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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.