Home / 19,842.76-27,385.86-11,885.32

Finding the Fourth Proportional to 19,842.76, 27,385.86 and 11,885.32

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Solution

The fourth proportional to 19,842.76, 27,385.86 and 11,885.32 is: 16,403.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842.76 : 27,385.86 = 11,885.32 : x
  2. Step 2: Convert to fraction form
    19,842.76/27,385.86 = 11,885.32/x
  3. Step 3: Cross multiply
    19,842.76x = 27,385.86 × 11,885.32
  4. Step 4: Simplify right side
    19,842.76x = 325,489,709.58
  5. Step 5: Solve for x
    x = 325,489,709.58/19,842.76
  6. Step 6: Final answer
    x = 16,403.45

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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.