Home / 19,346.78-29,024.76-13,786.40

Finding the Fourth Proportional to 19,346.78, 29,024.76 and 13,786.40

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Solution

The fourth proportional to 19,346.78, 29,024.76 and 13,786.40 is: 20,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,346.78 : 29,024.76 = 13,786.40 : x
  2. Step 2: Convert to fraction form
    19,346.78/29,024.76 = 13,786.40/x
  3. Step 3: Cross multiply
    19,346.78x = 29,024.76 × 13,786.40
  4. Step 4: Simplify right side
    19,346.78x = 400,146,951.26
  5. Step 5: Solve for x
    x = 400,146,951.26/19,346.78
  6. Step 6: Final answer
    x = 20,682.87

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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.