Home / 21,465.11-29,620.37-11,904.10

Finding the Fourth Proportional to 21,465.11, 29,620.37 and 11,904.10

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Solution

The fourth proportional to 21,465.11, 29,620.37 and 11,904.10 is: 16,426.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,465.11 : 29,620.37 = 11,904.10 : x
  2. Step 2: Convert to fraction form
    21,465.11/29,620.37 = 11,904.10/x
  3. Step 3: Cross multiply
    21,465.11x = 29,620.37 × 11,904.10
  4. Step 4: Simplify right side
    21,465.11x = 352,603,723.01
  5. Step 5: Solve for x
    x = 352,603,723.01/21,465.11
  6. Step 6: Final answer
    x = 16,426.83

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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.