Home / 34,318.20-47,359.62-20,890.02

Finding the Fourth Proportional to 34,318.20, 47,359.62 and 20,890.02

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Solution

The fourth proportional to 34,318.20, 47,359.62 and 20,890.02 is: 28,828.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,318.20 : 47,359.62 = 20,890.02 : x
  2. Step 2: Convert to fraction form
    34,318.20/47,359.62 = 20,890.02/x
  3. Step 3: Cross multiply
    34,318.20x = 47,359.62 × 20,890.02
  4. Step 4: Simplify right side
    34,318.20x = 989,343,408.99
  5. Step 5: Solve for x
    x = 989,343,408.99/34,318.20
  6. Step 6: Final answer
    x = 28,828.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.