Home / 21,835.83-30,133.44-11,899.83

Finding the Fourth Proportional to 21,835.83, 30,133.44 and 11,899.83

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Solution

The fourth proportional to 21,835.83, 30,133.44 and 11,899.83 is: 16,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,835.83 : 30,133.44 = 11,899.83 : x
  2. Step 2: Convert to fraction form
    21,835.83/30,133.44 = 11,899.83/x
  3. Step 3: Cross multiply
    21,835.83x = 30,133.44 × 11,899.83
  4. Step 4: Simplify right side
    21,835.83x = 358,582,813.32
  5. Step 5: Solve for x
    x = 358,582,813.32/21,835.83
  6. Step 6: Final answer
    x = 16,421.76

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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.