Home / 30,400.18-45,580.53-12,625.96

Finding the Fourth Proportional to 30,400.18, 45,580.53 and 12,625.96

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Solution

The fourth proportional to 30,400.18, 45,580.53 and 12,625.96 is: 18,930.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,400.18 : 45,580.53 = 12,625.96 : x
  2. Step 2: Convert to fraction form
    30,400.18/45,580.53 = 12,625.96/x
  3. Step 3: Cross multiply
    30,400.18x = 45,580.53 × 12,625.96
  4. Step 4: Simplify right side
    30,400.18x = 575,497,948.56
  5. Step 5: Solve for x
    x = 575,497,948.56/30,400.18
  6. Step 6: Final answer
    x = 18,930.74

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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.