Home / 19,790.25-27,310.55-11,407.29

Finding the Fourth Proportional to 19,790.25, 27,310.55 and 11,407.29

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Solution

The fourth proportional to 19,790.25, 27,310.55 and 11,407.29 is: 15,742.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.25 : 27,310.55 = 11,407.29 : x
  2. Step 2: Convert to fraction form
    19,790.25/27,310.55 = 11,407.29/x
  3. Step 3: Cross multiply
    19,790.25x = 27,310.55 × 11,407.29
  4. Step 4: Simplify right side
    19,790.25x = 311,539,363.91
  5. Step 5: Solve for x
    x = 311,539,363.91/19,790.25
  6. Step 6: Final answer
    x = 15,742.06

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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.