Home / 14,580.20-21,821.70-12,830.60

Finding the Fourth Proportional to 14,580.20, 21,821.70 and 12,830.60

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Solution

The fourth proportional to 14,580.20, 21,821.70 and 12,830.60 is: 19,203.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,580.20 : 21,821.70 = 12,830.60 : x
  2. Step 2: Convert to fraction form
    14,580.20/21,821.70 = 12,830.60/x
  3. Step 3: Cross multiply
    14,580.20x = 21,821.70 × 12,830.60
  4. Step 4: Simplify right side
    14,580.20x = 279,985,504.02
  5. Step 5: Solve for x
    x = 279,985,504.02/14,580.20
  6. Step 6: Final answer
    x = 19,203.13

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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.