Home / 26,281.96-39,420.38-7,814.12

Finding the Fourth Proportional to 26,281.96, 39,420.38 and 7,814.12

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Solution

The fourth proportional to 26,281.96, 39,420.38 and 7,814.12 is: 11,720.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,281.96 : 39,420.38 = 7,814.12 : x
  2. Step 2: Convert to fraction form
    26,281.96/39,420.38 = 7,814.12/x
  3. Step 3: Cross multiply
    26,281.96x = 39,420.38 × 7,814.12
  4. Step 4: Simplify right side
    26,281.96x = 308,035,579.77
  5. Step 5: Solve for x
    x = 308,035,579.77/26,281.96
  6. Step 6: Final answer
    x = 11,720.42

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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.