Home / 30,654.45-45,987.14-8,467.34

Finding the Fourth Proportional to 30,654.45, 45,987.14 and 8,467.34

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Solution

The fourth proportional to 30,654.45, 45,987.14 and 8,467.34 is: 12,702.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,654.45 : 45,987.14 = 8,467.34 : x
  2. Step 2: Convert to fraction form
    30,654.45/45,987.14 = 8,467.34/x
  3. Step 3: Cross multiply
    30,654.45x = 45,987.14 × 8,467.34
  4. Step 4: Simplify right side
    30,654.45x = 389,388,541.24
  5. Step 5: Solve for x
    x = 389,388,541.24/30,654.45
  6. Step 6: Final answer
    x = 12,702.51

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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.