Home / 21,788.08-30,066.96-12,356.44

Finding the Fourth Proportional to 21,788.08, 30,066.96 and 12,356.44

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Solution

The fourth proportional to 21,788.08, 30,066.96 and 12,356.44 is: 17,051.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,788.08 : 30,066.96 = 12,356.44 : x
  2. Step 2: Convert to fraction form
    21,788.08/30,066.96 = 12,356.44/x
  3. Step 3: Cross multiply
    21,788.08x = 30,066.96 × 12,356.44
  4. Step 4: Simplify right side
    21,788.08x = 371,520,558.39
  5. Step 5: Solve for x
    x = 371,520,558.39/21,788.08
  6. Step 6: Final answer
    x = 17,051.55

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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.