Home / 26,483.60-39,670.20-12,455.60

Finding the Fourth Proportional to 26,483.60, 39,670.20 and 12,455.60

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Solution

The fourth proportional to 26,483.60, 39,670.20 and 12,455.60 is: 18,657.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,483.60 : 39,670.20 = 12,455.60 : x
  2. Step 2: Convert to fraction form
    26,483.60/39,670.20 = 12,455.60/x
  3. Step 3: Cross multiply
    26,483.60x = 39,670.20 × 12,455.60
  4. Step 4: Simplify right side
    26,483.60x = 494,116,143.12
  5. Step 5: Solve for x
    x = 494,116,143.12/26,483.60
  6. Step 6: Final answer
    x = 18,657.44

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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.