Home / 35,780.30-49,374.60-19,863.80

Finding the Fourth Proportional to 35,780.30, 49,374.60 and 19,863.80

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Solution

The fourth proportional to 35,780.30, 49,374.60 and 19,863.80 is: 27,410.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,780.30 : 49,374.60 = 19,863.80 : x
  2. Step 2: Convert to fraction form
    35,780.30/49,374.60 = 19,863.80/x
  3. Step 3: Cross multiply
    35,780.30x = 49,374.60 × 19,863.80
  4. Step 4: Simplify right side
    35,780.30x = 980,767,179.48
  5. Step 5: Solve for x
    x = 980,767,179.48/35,780.30
  6. Step 6: Final answer
    x = 27,410.81

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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.