Home / 21,477.67-29,571.83-19,509.37

Finding the Fourth Proportional to 21,477.67, 29,571.83 and 19,509.37

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Solution

The fourth proportional to 21,477.67, 29,571.83 and 19,509.37 is: 26,861.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477.67 : 29,571.83 = 19,509.37 : x
  2. Step 2: Convert to fraction form
    21,477.67/29,571.83 = 19,509.37/x
  3. Step 3: Cross multiply
    21,477.67x = 29,571.83 × 19,509.37
  4. Step 4: Simplify right side
    21,477.67x = 576,927,675.50
  5. Step 5: Solve for x
    x = 576,927,675.50/21,477.67
  6. Step 6: Final answer
    x = 26,861.74

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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.