Home / 36,008.30-54,012.45-18,512.30

Finding the Fourth Proportional to 36,008.30, 54,012.45 and 18,512.30

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Solution

The fourth proportional to 36,008.30, 54,012.45 and 18,512.30 is: 27,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,008.30 : 54,012.45 = 18,512.30 : x
  2. Step 2: Convert to fraction form
    36,008.30/54,012.45 = 18,512.30/x
  3. Step 3: Cross multiply
    36,008.30x = 54,012.45 × 18,512.30
  4. Step 4: Simplify right side
    36,008.30x = 999,894,678.14
  5. Step 5: Solve for x
    x = 999,894,678.14/36,008.30
  6. Step 6: Final answer
    x = 27,768.45

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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.