Home / 38,981.60-58,438.20-23,147.60

Finding the Fourth Proportional to 38,981.60, 58,438.20 and 23,147.60

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Solution

The fourth proportional to 38,981.60, 58,438.20 and 23,147.60 is: 34,701.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,981.60 : 58,438.20 = 23,147.60 : x
  2. Step 2: Convert to fraction form
    38,981.60/58,438.20 = 23,147.60/x
  3. Step 3: Cross multiply
    38,981.60x = 58,438.20 × 23,147.60
  4. Step 4: Simplify right side
    38,981.60x = 1,352,704,078.32
  5. Step 5: Solve for x
    x = 1,352,704,078.32/38,981.60
  6. Step 6: Final answer
    x = 34,701.09

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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.