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Finding the Fourth Proportional to 19,910, 27,484.44 and 12,462.32

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Solution

The fourth proportional to 19,910, 27,484.44 and 12,462.32 is: 17,203.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,910 : 27,484.44 = 12,462.32 : x
  2. Step 2: Convert to fraction form
    19,910/27,484.44 = 12,462.32/x
  3. Step 3: Cross multiply
    19,910x = 27,484.44 × 12,462.32
  4. Step 4: Simplify right side
    19,910x = 342,519,886.30
  5. Step 5: Solve for x
    x = 342,519,886.30/19,910
  6. Step 6: Final answer
    x = 17,203.41

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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.