Home / 34,429-47,520.12-21,011.35

Finding the Fourth Proportional to 34,429, 47,520.12 and 21,011.35

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Solution

The fourth proportional to 34,429, 47,520.12 and 21,011.35 is: 29,000.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,429 : 47,520.12 = 21,011.35 : x
  2. Step 2: Convert to fraction form
    34,429/47,520.12 = 21,011.35/x
  3. Step 3: Cross multiply
    34,429x = 47,520.12 × 21,011.35
  4. Step 4: Simplify right side
    34,429x = 998,461,873.36
  5. Step 5: Solve for x
    x = 998,461,873.36/34,429
  6. Step 6: Final answer
    x = 29,000.61

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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.