Home / 20,667.53-28,521.78-11,714.67

Finding the Fourth Proportional to 20,667.53, 28,521.78 and 11,714.67

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Solution

The fourth proportional to 20,667.53, 28,521.78 and 11,714.67 is: 16,166.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667.53 : 28,521.78 = 11,714.67 : x
  2. Step 2: Convert to fraction form
    20,667.53/28,521.78 = 11,714.67/x
  3. Step 3: Cross multiply
    20,667.53x = 28,521.78 × 11,714.67
  4. Step 4: Simplify right side
    20,667.53x = 334,123,240.51
  5. Step 5: Solve for x
    x = 334,123,240.51/20,667.53
  6. Step 6: Final answer
    x = 16,166.58

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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.