Home / 19,456.38-26,812.35-14,142.78

Finding the Fourth Proportional to 19,456.38, 26,812.35 and 14,142.78

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Solution

The fourth proportional to 19,456.38, 26,812.35 and 14,142.78 is: 19,489.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,456.38 : 26,812.35 = 14,142.78 : x
  2. Step 2: Convert to fraction form
    19,456.38/26,812.35 = 14,142.78/x
  3. Step 3: Cross multiply
    19,456.38x = 26,812.35 × 14,142.78
  4. Step 4: Simplify right side
    19,456.38x = 379,201,167.33
  5. Step 5: Solve for x
    x = 379,201,167.33/19,456.38
  6. Step 6: Final answer
    x = 19,489.81

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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.