Home / 21,894.60-30,217.68-12,464.04

Finding the Fourth Proportional to 21,894.60, 30,217.68 and 12,464.04

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Solution

The fourth proportional to 21,894.60, 30,217.68 and 12,464.04 is: 17,202.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,894.60 : 30,217.68 = 12,464.04 : x
  2. Step 2: Convert to fraction form
    21,894.60/30,217.68 = 12,464.04/x
  3. Step 3: Cross multiply
    21,894.60x = 30,217.68 × 12,464.04
  4. Step 4: Simplify right side
    21,894.60x = 376,634,372.23
  5. Step 5: Solve for x
    x = 376,634,372.23/21,894.60
  6. Step 6: Final answer
    x = 17,202.16

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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.