Home / 19,620.91-27,070.23-11,122.12

Finding the Fourth Proportional to 19,620.91, 27,070.23 and 11,122.12

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Solution

The fourth proportional to 19,620.91, 27,070.23 and 11,122.12 is: 15,344.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.91 : 27,070.23 = 11,122.12 : x
  2. Step 2: Convert to fraction form
    19,620.91/27,070.23 = 11,122.12/x
  3. Step 3: Cross multiply
    19,620.91x = 27,070.23 × 11,122.12
  4. Step 4: Simplify right side
    19,620.91x = 301,078,346.49
  5. Step 5: Solve for x
    x = 301,078,346.49/19,620.91
  6. Step 6: Final answer
    x = 15,344.77

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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.