Home / 20,607.36-28,437.78-11,654.56

Finding the Fourth Proportional to 20,607.36, 28,437.78 and 11,654.56

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Solution

The fourth proportional to 20,607.36, 28,437.78 and 11,654.56 is: 16,083.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,607.36 : 28,437.78 = 11,654.56 : x
  2. Step 2: Convert to fraction form
    20,607.36/28,437.78 = 11,654.56/x
  3. Step 3: Cross multiply
    20,607.36x = 28,437.78 × 11,654.56
  4. Step 4: Simplify right side
    20,607.36x = 331,429,813.28
  5. Step 5: Solve for x
    x = 331,429,813.28/20,607.36
  6. Step 6: Final answer
    x = 16,083.08

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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.