Home / 26,491.12-39,699.73-19,909.60

Finding the Fourth Proportional to 26,491.12, 39,699.73 and 19,909.60

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Solution

The fourth proportional to 26,491.12, 39,699.73 and 19,909.60 is: 29,836.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,491.12 : 39,699.73 = 19,909.60 : x
  2. Step 2: Convert to fraction form
    26,491.12/39,699.73 = 19,909.60/x
  3. Step 3: Cross multiply
    26,491.12x = 39,699.73 × 19,909.60
  4. Step 4: Simplify right side
    26,491.12x = 790,405,744.41
  5. Step 5: Solve for x
    x = 790,405,744.41/26,491.12
  6. Step 6: Final answer
    x = 29,836.63

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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.