Home / 28,929.80-43,394.70-26,856.20

Finding the Fourth Proportional to 28,929.80, 43,394.70 and 26,856.20

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Solution

The fourth proportional to 28,929.80, 43,394.70 and 26,856.20 is: 40,284.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,929.80 : 43,394.70 = 26,856.20 : x
  2. Step 2: Convert to fraction form
    28,929.80/43,394.70 = 26,856.20/x
  3. Step 3: Cross multiply
    28,929.80x = 43,394.70 × 26,856.20
  4. Step 4: Simplify right side
    28,929.80x = 1,165,416,742.14
  5. Step 5: Solve for x
    x = 1,165,416,742.14/28,929.80
  6. Step 6: Final answer
    x = 40,284.30

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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.