Home / 38,813.41-58,220.10-12,518.15

Finding the Fourth Proportional to 38,813.41, 58,220.10 and 12,518.15

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Solution

The fourth proportional to 38,813.41, 58,220.10 and 12,518.15 is: 18,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,813.41 : 58,220.10 = 12,518.15 : x
  2. Step 2: Convert to fraction form
    38,813.41/58,220.10 = 12,518.15/x
  3. Step 3: Cross multiply
    38,813.41x = 58,220.10 × 12,518.15
  4. Step 4: Simplify right side
    38,813.41x = 728,807,653.71
  5. Step 5: Solve for x
    x = 728,807,653.71/38,813.41
  6. Step 6: Final answer
    x = 18,777.22

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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.