Home / 19,732.20-27,220.32-13,359.02

Finding the Fourth Proportional to 19,732.20, 27,220.32 and 13,359.02

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Solution

The fourth proportional to 19,732.20, 27,220.32 and 13,359.02 is: 18,428.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,732.20 : 27,220.32 = 13,359.02 : x
  2. Step 2: Convert to fraction form
    19,732.20/27,220.32 = 13,359.02/x
  3. Step 3: Cross multiply
    19,732.20x = 27,220.32 × 13,359.02
  4. Step 4: Simplify right side
    19,732.20x = 363,636,596.39
  5. Step 5: Solve for x
    x = 363,636,596.39/19,732.20
  6. Step 6: Final answer
    x = 18,428.59

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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.