Home / 19,732.12-27,238.02-13,355.60

Finding the Fourth Proportional to 19,732.12, 27,238.02 and 13,355.60

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Solution

The fourth proportional to 19,732.12, 27,238.02 and 13,355.60 is: 18,435.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,732.12 : 27,238.02 = 13,355.60 : x
  2. Step 2: Convert to fraction form
    19,732.12/27,238.02 = 13,355.60/x
  3. Step 3: Cross multiply
    19,732.12x = 27,238.02 × 13,355.60
  4. Step 4: Simplify right side
    19,732.12x = 363,780,099.91
  5. Step 5: Solve for x
    x = 363,780,099.91/19,732.12
  6. Step 6: Final answer
    x = 18,435.94

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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.