Home / 29,780.85-41,068.71-20,111.58

Finding the Fourth Proportional to 29,780.85, 41,068.71 and 20,111.58

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Solution

The fourth proportional to 29,780.85, 41,068.71 and 20,111.58 is: 27,734.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,780.85 : 41,068.71 = 20,111.58 : x
  2. Step 2: Convert to fraction form
    29,780.85/41,068.71 = 20,111.58/x
  3. Step 3: Cross multiply
    29,780.85x = 41,068.71 × 20,111.58
  4. Step 4: Simplify right side
    29,780.85x = 825,956,646.66
  5. Step 5: Solve for x
    x = 825,956,646.66/29,780.85
  6. Step 6: Final answer
    x = 27,734.49

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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.