Home / 19,981.68-27,577.26-12,028.20

Finding the Fourth Proportional to 19,981.68, 27,577.26 and 12,028.20

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Solution

The fourth proportional to 19,981.68, 27,577.26 and 12,028.20 is: 16,600.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,981.68 : 27,577.26 = 12,028.20 : x
  2. Step 2: Convert to fraction form
    19,981.68/27,577.26 = 12,028.20/x
  3. Step 3: Cross multiply
    19,981.68x = 27,577.26 × 12,028.20
  4. Step 4: Simplify right side
    19,981.68x = 331,704,798.73
  5. Step 5: Solve for x
    x = 331,704,798.73/19,981.68
  6. Step 6: Final answer
    x = 16,600.45

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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.