Home / 30,245.16-45,374.34-12,705

Finding the Fourth Proportional to 30,245.16, 45,374.34 and 12,705

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Solution

The fourth proportional to 30,245.16, 45,374.34 and 12,705 is: 19,060.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245.16 : 45,374.34 = 12,705 : x
  2. Step 2: Convert to fraction form
    30,245.16/45,374.34 = 12,705/x
  3. Step 3: Cross multiply
    30,245.16x = 45,374.34 × 12,705
  4. Step 4: Simplify right side
    30,245.16x = 576,480,989.70
  5. Step 5: Solve for x
    x = 576,480,989.70/30,245.16
  6. Step 6: Final answer
    x = 19,060.27

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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.