Home / 34,417.20-47,499.96-20,992.56

Finding the Fourth Proportional to 34,417.20, 47,499.96 and 20,992.56

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Solution

The fourth proportional to 34,417.20, 47,499.96 and 20,992.56 is: 28,972.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,417.20 : 47,499.96 = 20,992.56 : x
  2. Step 2: Convert to fraction form
    34,417.20/47,499.96 = 20,992.56/x
  3. Step 3: Cross multiply
    34,417.20x = 47,499.96 × 20,992.56
  4. Step 4: Simplify right side
    34,417.20x = 997,145,760.30
  5. Step 5: Solve for x
    x = 997,145,760.30/34,417.20
  6. Step 6: Final answer
    x = 28,972.31

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1.5x scale

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.