Home / 20,595.31-28,416.44-11,642.62

Finding the Fourth Proportional to 20,595.31, 28,416.44 and 11,642.62

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Solution

The fourth proportional to 20,595.31, 28,416.44 and 11,642.62 is: 16,063.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.31 : 28,416.44 = 11,642.62 : x
  2. Step 2: Convert to fraction form
    20,595.31/28,416.44 = 11,642.62/x
  3. Step 3: Cross multiply
    20,595.31x = 28,416.44 × 11,642.62
  4. Step 4: Simplify right side
    20,595.31x = 330,841,816.62
  5. Step 5: Solve for x
    x = 330,841,816.62/20,595.31
  6. Step 6: Final answer
    x = 16,063.94

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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.