Home / 34,221.84-51,319.80-13,434

Finding the Fourth Proportional to 34,221.84, 51,319.80 and 13,434

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Solution

The fourth proportional to 34,221.84, 51,319.80 and 13,434 is: 20,145.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,221.84 : 51,319.80 = 13,434 : x
  2. Step 2: Convert to fraction form
    34,221.84/51,319.80 = 13,434/x
  3. Step 3: Cross multiply
    34,221.84x = 51,319.80 × 13,434
  4. Step 4: Simplify right side
    34,221.84x = 689,430,193.20
  5. Step 5: Solve for x
    x = 689,430,193.20/34,221.84
  6. Step 6: Final answer
    x = 20,145.91

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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.