Home / 20,275.22-30,412.73-5,484.12

Finding the Fourth Proportional to 20,275.22, 30,412.73 and 5,484.12

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Solution

The fourth proportional to 20,275.22, 30,412.73 and 5,484.12 is: 8,226.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275.22 : 30,412.73 = 5,484.12 : x
  2. Step 2: Convert to fraction form
    20,275.22/30,412.73 = 5,484.12/x
  3. Step 3: Cross multiply
    20,275.22x = 30,412.73 × 5,484.12
  4. Step 4: Simplify right side
    20,275.22x = 166,786,960.51
  5. Step 5: Solve for x
    x = 166,786,960.51/20,275.22
  6. Step 6: Final answer
    x = 8,226.15

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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.