Home / 28,983.88-39,973.26-20,017.18

Finding the Fourth Proportional to 28,983.88, 39,973.26 and 20,017.18

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Solution

The fourth proportional to 28,983.88, 39,973.26 and 20,017.18 is: 27,606.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,983.88 : 39,973.26 = 20,017.18 : x
  2. Step 2: Convert to fraction form
    28,983.88/39,973.26 = 20,017.18/x
  3. Step 3: Cross multiply
    28,983.88x = 39,973.26 × 20,017.18
  4. Step 4: Simplify right side
    28,983.88x = 800,151,940.61
  5. Step 5: Solve for x
    x = 800,151,940.61/28,983.88
  6. Step 6: Final answer
    x = 27,606.79

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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.