Home / 21,956.87-30,302.51-12,268.06

Finding the Fourth Proportional to 21,956.87, 30,302.51 and 12,268.06

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Solution

The fourth proportional to 21,956.87, 30,302.51 and 12,268.06 is: 16,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.87 : 30,302.51 = 12,268.06 : x
  2. Step 2: Convert to fraction form
    21,956.87/30,302.51 = 12,268.06/x
  3. Step 3: Cross multiply
    21,956.87x = 30,302.51 × 12,268.06
  4. Step 4: Simplify right side
    21,956.87x = 371,752,873.73
  5. Step 5: Solve for x
    x = 371,752,873.73/21,956.87
  6. Step 6: Final answer
    x = 16,931.05

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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.