Home / 34,174.24-47,129.75-21,428.85

Finding the Fourth Proportional to 34,174.24, 47,129.75 and 21,428.85

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Solution

The fourth proportional to 34,174.24, 47,129.75 and 21,428.85 is: 29,552.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,174.24 : 47,129.75 = 21,428.85 : x
  2. Step 2: Convert to fraction form
    34,174.24/47,129.75 = 21,428.85/x
  3. Step 3: Cross multiply
    34,174.24x = 47,129.75 × 21,428.85
  4. Step 4: Simplify right side
    34,174.24x = 1,009,936,493.24
  5. Step 5: Solve for x
    x = 1,009,936,493.24/34,174.24
  6. Step 6: Final answer
    x = 29,552.57

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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.