Home / 20,714.20-31,053.93-9,018.70

Finding the Fourth Proportional to 20,714.20, 31,053.93 and 9,018.70

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Solution

The fourth proportional to 20,714.20, 31,053.93 and 9,018.70 is: 13,520.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.20 : 31,053.93 = 9,018.70 : x
  2. Step 2: Convert to fraction form
    20,714.20/31,053.93 = 9,018.70/x
  3. Step 3: Cross multiply
    20,714.20x = 31,053.93 × 9,018.70
  4. Step 4: Simplify right side
    20,714.20x = 280,066,078.49
  5. Step 5: Solve for x
    x = 280,066,078.49/20,714.20
  6. Step 6: Final answer
    x = 13,520.49

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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.