Home / 19,977.68-27,569.31-11,025.16

Finding the Fourth Proportional to 19,977.68, 27,569.31 and 11,025.16

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Solution

The fourth proportional to 19,977.68, 27,569.31 and 11,025.16 is: 15,214.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,977.68 : 27,569.31 = 11,025.16 : x
  2. Step 2: Convert to fraction form
    19,977.68/27,569.31 = 11,025.16/x
  3. Step 3: Cross multiply
    19,977.68x = 27,569.31 × 11,025.16
  4. Step 4: Simplify right side
    19,977.68x = 303,956,053.84
  5. Step 5: Solve for x
    x = 303,956,053.84/19,977.68
  6. Step 6: Final answer
    x = 15,214.78

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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.