Home / 19,228.78-26,538.15-11,160.71

Finding the Fourth Proportional to 19,228.78, 26,538.15 and 11,160.71

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Solution

The fourth proportional to 19,228.78, 26,538.15 and 11,160.71 is: 15,403.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.78 : 26,538.15 = 11,160.71 : x
  2. Step 2: Convert to fraction form
    19,228.78/26,538.15 = 11,160.71/x
  3. Step 3: Cross multiply
    19,228.78x = 26,538.15 × 11,160.71
  4. Step 4: Simplify right side
    19,228.78x = 296,184,540.28
  5. Step 5: Solve for x
    x = 296,184,540.28/19,228.78
  6. Step 6: Final answer
    x = 15,403.19

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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.