Home / 20,168.89-27,835.98-12,102.91

Finding the Fourth Proportional to 20,168.89, 27,835.98 and 12,102.91

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Solution

The fourth proportional to 20,168.89, 27,835.98 and 12,102.91 is: 16,703.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.89 : 27,835.98 = 12,102.91 : x
  2. Step 2: Convert to fraction form
    20,168.89/27,835.98 = 12,102.91/x
  3. Step 3: Cross multiply
    20,168.89x = 27,835.98 × 12,102.91
  4. Step 4: Simplify right side
    20,168.89x = 336,896,360.70
  5. Step 5: Solve for x
    x = 336,896,360.70/20,168.89
  6. Step 6: Final answer
    x = 16,703.76

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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.