Home / 30,864.24-42,577.38-18,906.48

Finding the Fourth Proportional to 30,864.24, 42,577.38 and 18,906.48

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Solution

The fourth proportional to 30,864.24, 42,577.38 and 18,906.48 is: 26,081.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,864.24 : 42,577.38 = 18,906.48 : x
  2. Step 2: Convert to fraction form
    30,864.24/42,577.38 = 18,906.48/x
  3. Step 3: Cross multiply
    30,864.24x = 42,577.38 × 18,906.48
  4. Step 4: Simplify right side
    30,864.24x = 804,988,383.42
  5. Step 5: Solve for x
    x = 804,988,383.42/30,864.24
  6. Step 6: Final answer
    x = 26,081.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.