Home / 55,340.96-82,982.61-19,788.57

Finding the Fourth Proportional to 55,340.96, 82,982.61 and 19,788.57

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Solution

The fourth proportional to 55,340.96, 82,982.61 and 19,788.57 is: 29,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,340.96 : 82,982.61 = 19,788.57 : x
  2. Step 2: Convert to fraction form
    55,340.96/82,982.61 = 19,788.57/x
  3. Step 3: Cross multiply
    55,340.96x = 82,982.61 × 19,788.57
  4. Step 4: Simplify right side
    55,340.96x = 1,642,107,186.77
  5. Step 5: Solve for x
    x = 1,642,107,186.77/55,340.96
  6. Step 6: Final answer
    x = 29,672.55

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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.