Home / 19,242.78-28,822.05-11,434.38

Finding the Fourth Proportional to 19,242.78, 28,822.05 and 11,434.38

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Solution

The fourth proportional to 19,242.78, 28,822.05 and 11,434.38 is: 17,126.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.78 : 28,822.05 = 11,434.38 : x
  2. Step 2: Convert to fraction form
    19,242.78/28,822.05 = 11,434.38/x
  3. Step 3: Cross multiply
    19,242.78x = 28,822.05 × 11,434.38
  4. Step 4: Simplify right side
    19,242.78x = 329,562,272.08
  5. Step 5: Solve for x
    x = 329,562,272.08/19,242.78
  6. Step 6: Final answer
    x = 17,126.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.