Home / 28,930.84-43,377.18-19,040.20

Finding the Fourth Proportional to 28,930.84, 43,377.18 and 19,040.20

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Solution

The fourth proportional to 28,930.84, 43,377.18 and 19,040.20 is: 28,547.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.84 : 43,377.18 = 19,040.20 : x
  2. Step 2: Convert to fraction form
    28,930.84/43,377.18 = 19,040.20/x
  3. Step 3: Cross multiply
    28,930.84x = 43,377.18 × 19,040.20
  4. Step 4: Simplify right side
    28,930.84x = 825,910,182.64
  5. Step 5: Solve for x
    x = 825,910,182.64/28,930.84
  6. Step 6: Final answer
    x = 28,547.74

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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.