Home / 19,977.40-27,568.82-11,480.08

Finding the Fourth Proportional to 19,977.40, 27,568.82 and 11,480.08

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Solution

The fourth proportional to 19,977.40, 27,568.82 and 11,480.08 is: 15,842.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,977.40 : 27,568.82 = 11,480.08 : x
  2. Step 2: Convert to fraction form
    19,977.40/27,568.82 = 11,480.08/x
  3. Step 3: Cross multiply
    19,977.40x = 27,568.82 × 11,480.08
  4. Step 4: Simplify right side
    19,977.40x = 316,492,259.11
  5. Step 5: Solve for x
    x = 316,492,259.11/19,977.40
  6. Step 6: Final answer
    x = 15,842.51

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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.