Home / 20,852.06-28,765.08-14,135.42

Finding the Fourth Proportional to 20,852.06, 28,765.08 and 14,135.42

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Solution

The fourth proportional to 20,852.06, 28,765.08 and 14,135.42 is: 19,499.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,852.06 : 28,765.08 = 14,135.42 : x
  2. Step 2: Convert to fraction form
    20,852.06/28,765.08 = 14,135.42/x
  3. Step 3: Cross multiply
    20,852.06x = 28,765.08 × 14,135.42
  4. Step 4: Simplify right side
    20,852.06x = 406,606,487.13
  5. Step 5: Solve for x
    x = 406,606,487.13/20,852.06
  6. Step 6: Final answer
    x = 19,499.58

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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.