Home / 28,021.47-38,674.76-17,954.25

Finding the Fourth Proportional to 28,021.47, 38,674.76 and 17,954.25

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Solution

The fourth proportional to 28,021.47, 38,674.76 and 17,954.25 is: 24,780.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021.47 : 38,674.76 = 17,954.25 : x
  2. Step 2: Convert to fraction form
    28,021.47/38,674.76 = 17,954.25/x
  3. Step 3: Cross multiply
    28,021.47x = 38,674.76 × 17,954.25
  4. Step 4: Simplify right side
    28,021.47x = 694,376,309.73
  5. Step 5: Solve for x
    x = 694,376,309.73/28,021.47
  6. Step 6: Final answer
    x = 24,780.15

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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.