Home / 20,477.67-30,729.57-13,471.77

Finding the Fourth Proportional to 20,477.67, 30,729.57 and 13,471.77

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Solution

The fourth proportional to 20,477.67, 30,729.57 and 13,471.77 is: 20,216.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477.67 : 30,729.57 = 13,471.77 : x
  2. Step 2: Convert to fraction form
    20,477.67/30,729.57 = 13,471.77/x
  3. Step 3: Cross multiply
    20,477.67x = 30,729.57 × 13,471.77
  4. Step 4: Simplify right side
    20,477.67x = 413,981,699.24
  5. Step 5: Solve for x
    x = 413,981,699.24/20,477.67
  6. Step 6: Final answer
    x = 20,216.25

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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.