Home / 20,606.08-28,434.68-11,654.44

Finding the Fourth Proportional to 20,606.08, 28,434.68 and 11,654.44

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Solution

The fourth proportional to 20,606.08, 28,434.68 and 11,654.44 is: 16,082.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.08 : 28,434.68 = 11,654.44 : x
  2. Step 2: Convert to fraction form
    20,606.08/28,434.68 = 11,654.44/x
  3. Step 3: Cross multiply
    20,606.08x = 28,434.68 × 11,654.44
  4. Step 4: Simplify right side
    20,606.08x = 331,390,271.98
  5. Step 5: Solve for x
    x = 331,390,271.98/20,606.08
  6. Step 6: Final answer
    x = 16,082.16

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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.