Home / 35,783.30-49,378.46-19,866.80

Finding the Fourth Proportional to 35,783.30, 49,378.46 and 19,866.80

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Solution

The fourth proportional to 35,783.30, 49,378.46 and 19,866.80 is: 27,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,783.30 : 49,378.46 = 19,866.80 : x
  2. Step 2: Convert to fraction form
    35,783.30/49,378.46 = 19,866.80/x
  3. Step 3: Cross multiply
    35,783.30x = 49,378.46 × 19,866.80
  4. Step 4: Simplify right side
    35,783.30x = 980,991,989.13
  5. Step 5: Solve for x
    x = 980,991,989.13/35,783.30
  6. Step 6: Final answer
    x = 27,414.80

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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.