Home / 20,146.85-27,793.70-13,425.93

Finding the Fourth Proportional to 20,146.85, 27,793.70 and 13,425.93

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Solution

The fourth proportional to 20,146.85, 27,793.70 and 13,425.93 is: 18,521.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.85 : 27,793.70 = 13,425.93 : x
  2. Step 2: Convert to fraction form
    20,146.85/27,793.70 = 13,425.93/x
  3. Step 3: Cross multiply
    20,146.85x = 27,793.70 × 13,425.93
  4. Step 4: Simplify right side
    20,146.85x = 373,156,203.51
  5. Step 5: Solve for x
    x = 373,156,203.51/20,146.85
  6. Step 6: Final answer
    x = 18,521.82

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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.