Home / 33,107.60-49,661.40-19,985.60

Finding the Fourth Proportional to 33,107.60, 49,661.40 and 19,985.60

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Solution

The fourth proportional to 33,107.60, 49,661.40 and 19,985.60 is: 29,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,107.60 : 49,661.40 = 19,985.60 : x
  2. Step 2: Convert to fraction form
    33,107.60/49,661.40 = 19,985.60/x
  3. Step 3: Cross multiply
    33,107.60x = 49,661.40 × 19,985.60
  4. Step 4: Simplify right side
    33,107.60x = 992,512,875.84
  5. Step 5: Solve for x
    x = 992,512,875.84/33,107.60
  6. Step 6: Final answer
    x = 29,978.40

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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.