Home / 58,380.57-87,583.15-18,934.60

Finding the Fourth Proportional to 58,380.57, 87,583.15 and 18,934.60

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Solution

The fourth proportional to 58,380.57, 87,583.15 and 18,934.60 is: 28,405.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,380.57 : 87,583.15 = 18,934.60 : x
  2. Step 2: Convert to fraction form
    58,380.57/87,583.15 = 18,934.60/x
  3. Step 3: Cross multiply
    58,380.57x = 87,583.15 × 18,934.60
  4. Step 4: Simplify right side
    58,380.57x = 1,658,351,911.99
  5. Step 5: Solve for x
    x = 1,658,351,911.99/58,380.57
  6. Step 6: Final answer
    x = 28,405.89

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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.