Home / 20,933.88-31,551.36-18,047.04

Finding the Fourth Proportional to 20,933.88, 31,551.36 and 18,047.04

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Solution

The fourth proportional to 20,933.88, 31,551.36 and 18,047.04 is: 27,200.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.88 : 31,551.36 = 18,047.04 : x
  2. Step 2: Convert to fraction form
    20,933.88/31,551.36 = 18,047.04/x
  3. Step 3: Cross multiply
    20,933.88x = 31,551.36 × 18,047.04
  4. Step 4: Simplify right side
    20,933.88x = 569,408,655.97
  5. Step 5: Solve for x
    x = 569,408,655.97/20,933.88
  6. Step 6: Final answer
    x = 27,200.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.