Home / 30,476.52-45,707.22-20,676.60

Finding the Fourth Proportional to 30,476.52, 45,707.22 and 20,676.60

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Solution

The fourth proportional to 30,476.52, 45,707.22 and 20,676.60 is: 31,009.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,476.52 : 45,707.22 = 20,676.60 : x
  2. Step 2: Convert to fraction form
    30,476.52/45,707.22 = 20,676.60/x
  3. Step 3: Cross multiply
    30,476.52x = 45,707.22 × 20,676.60
  4. Step 4: Simplify right side
    30,476.52x = 945,069,905.05
  5. Step 5: Solve for x
    x = 945,069,905.05/30,476.52
  6. Step 6: Final answer
    x = 31,009.77

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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.