Home / 19,347.76-29,021.64-5,307.85

Finding the Fourth Proportional to 19,347.76, 29,021.64 and 5,307.85

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Solution

The fourth proportional to 19,347.76, 29,021.64 and 5,307.85 is: 7,961.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,347.76 : 29,021.64 = 5,307.85 : x
  2. Step 2: Convert to fraction form
    19,347.76/29,021.64 = 5,307.85/x
  3. Step 3: Cross multiply
    19,347.76x = 29,021.64 × 5,307.85
  4. Step 4: Simplify right side
    19,347.76x = 154,042,511.87
  5. Step 5: Solve for x
    x = 154,042,511.87/19,347.76
  6. Step 6: Final answer
    x = 7,961.78

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1.5x scale

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.