Home / 20,372.12-30,573.82-9,130.92

Finding the Fourth Proportional to 20,372.12, 30,573.82 and 9,130.92

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Solution

The fourth proportional to 20,372.12, 30,573.82 and 9,130.92 is: 13,703.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372.12 : 30,573.82 = 9,130.92 : x
  2. Step 2: Convert to fraction form
    20,372.12/30,573.82 = 9,130.92/x
  3. Step 3: Cross multiply
    20,372.12x = 30,573.82 × 9,130.92
  4. Step 4: Simplify right side
    20,372.12x = 279,167,104.51
  5. Step 5: Solve for x
    x = 279,167,104.51/20,372.12
  6. Step 6: Final answer
    x = 13,703.39

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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.