Home / 27,998.88-42,007.68-13,208.52

Finding the Fourth Proportional to 27,998.88, 42,007.68 and 13,208.52

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Solution

The fourth proportional to 27,998.88, 42,007.68 and 13,208.52 is: 19,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,998.88 : 42,007.68 = 13,208.52 : x
  2. Step 2: Convert to fraction form
    27,998.88/42,007.68 = 13,208.52/x
  3. Step 3: Cross multiply
    27,998.88x = 42,007.68 × 13,208.52
  4. Step 4: Simplify right side
    27,998.88x = 554,859,281.43
  5. Step 5: Solve for x
    x = 554,859,281.43/27,998.88
  6. Step 6: Final answer
    x = 19,817.20

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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.