Home / 20,156.50-30,231.51-14,295.34

Finding the Fourth Proportional to 20,156.50, 30,231.51 and 14,295.34

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Solution

The fourth proportional to 20,156.50, 30,231.51 and 14,295.34 is: 21,440.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.50 : 30,231.51 = 14,295.34 : x
  2. Step 2: Convert to fraction form
    20,156.50/30,231.51 = 14,295.34/x
  3. Step 3: Cross multiply
    20,156.50x = 30,231.51 × 14,295.34
  4. Step 4: Simplify right side
    20,156.50x = 432,169,714.16
  5. Step 5: Solve for x
    x = 432,169,714.16/20,156.50
  6. Step 6: Final answer
    x = 21,440.71

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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.