Home / 20,756.34-28,625.96-13,675.32

Finding the Fourth Proportional to 20,756.34, 28,625.96 and 13,675.32

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Solution

The fourth proportional to 20,756.34, 28,625.96 and 13,675.32 is: 18,860.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,756.34 : 28,625.96 = 13,675.32 : x
  2. Step 2: Convert to fraction form
    20,756.34/28,625.96 = 13,675.32/x
  3. Step 3: Cross multiply
    20,756.34x = 28,625.96 × 13,675.32
  4. Step 4: Simplify right side
    20,756.34x = 391,469,094.93
  5. Step 5: Solve for x
    x = 391,469,094.93/20,756.34
  6. Step 6: Final answer
    x = 18,860.22

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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.