Home / 35,380.85-53,065.40-13,188.33

Finding the Fourth Proportional to 35,380.85, 53,065.40 and 13,188.33

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Solution

The fourth proportional to 35,380.85, 53,065.40 and 13,188.33 is: 19,780.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,380.85 : 53,065.40 = 13,188.33 : x
  2. Step 2: Convert to fraction form
    35,380.85/53,065.40 = 13,188.33/x
  3. Step 3: Cross multiply
    35,380.85x = 53,065.40 × 13,188.33
  4. Step 4: Simplify right side
    35,380.85x = 699,843,940.84
  5. Step 5: Solve for x
    x = 699,843,940.84/35,380.85
  6. Step 6: Final answer
    x = 19,780.31

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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.