Home / 18,742.44-28,123.38-13,590.84

Finding the Fourth Proportional to 18,742.44, 28,123.38 and 13,590.84

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Solution

The fourth proportional to 18,742.44, 28,123.38 and 13,590.84 is: 20,393.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742.44 : 28,123.38 = 13,590.84 : x
  2. Step 2: Convert to fraction form
    18,742.44/28,123.38 = 13,590.84/x
  3. Step 3: Cross multiply
    18,742.44x = 28,123.38 × 13,590.84
  4. Step 4: Simplify right side
    18,742.44x = 382,220,357.84
  5. Step 5: Solve for x
    x = 382,220,357.84/18,742.44
  6. Step 6: Final answer
    x = 20,393.31

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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.