Home / 28,780.34-43,175.55-13,199.54

Finding the Fourth Proportional to 28,780.34, 43,175.55 and 13,199.54

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Solution

The fourth proportional to 28,780.34, 43,175.55 and 13,199.54 is: 19,801.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.34 : 43,175.55 = 13,199.54 : x
  2. Step 2: Convert to fraction form
    28,780.34/43,175.55 = 13,199.54/x
  3. Step 3: Cross multiply
    28,780.34x = 43,175.55 × 13,199.54
  4. Step 4: Simplify right side
    28,780.34x = 569,897,399.25
  5. Step 5: Solve for x
    x = 569,897,399.25/28,780.34
  6. Step 6: Final answer
    x = 19,801.62

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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.