Home / 20,113.08-27,761.43-12,554.86

Finding the Fourth Proportional to 20,113.08, 27,761.43 and 12,554.86

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Solution

The fourth proportional to 20,113.08, 27,761.43 and 12,554.86 is: 17,329.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.08 : 27,761.43 = 12,554.86 : x
  2. Step 2: Convert to fraction form
    20,113.08/27,761.43 = 12,554.86/x
  3. Step 3: Cross multiply
    20,113.08x = 27,761.43 × 12,554.86
  4. Step 4: Simplify right side
    20,113.08x = 348,540,764.34
  5. Step 5: Solve for x
    x = 348,540,764.34/20,113.08
  6. Step 6: Final answer
    x = 17,329.06

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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.