Home / 18,977.37-28,471.05-13,646.76

Finding the Fourth Proportional to 18,977.37, 28,471.05 and 13,646.76

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Solution

The fourth proportional to 18,977.37, 28,471.05 and 13,646.76 is: 20,473.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.37 : 28,471.05 = 13,646.76 : x
  2. Step 2: Convert to fraction form
    18,977.37/28,471.05 = 13,646.76/x
  3. Step 3: Cross multiply
    18,977.37x = 28,471.05 × 13,646.76
  4. Step 4: Simplify right side
    18,977.37x = 388,537,586.30
  5. Step 5: Solve for x
    x = 388,537,586.30/18,977.37
  6. Step 6: Final answer
    x = 20,473.73

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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.