Home / 18,421.11-27,631.45-11,027.63

Finding the Fourth Proportional to 18,421.11, 27,631.45 and 11,027.63

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Solution

The fourth proportional to 18,421.11, 27,631.45 and 11,027.63 is: 16,541.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.11 : 27,631.45 = 11,027.63 : x
  2. Step 2: Convert to fraction form
    18,421.11/27,631.45 = 11,027.63/x
  3. Step 3: Cross multiply
    18,421.11x = 27,631.45 × 11,027.63
  4. Step 4: Simplify right side
    18,421.11x = 304,709,489.83
  5. Step 5: Solve for x
    x = 304,709,489.83/18,421.11
  6. Step 6: Final answer
    x = 16,541.32

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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.