Home / 20,553.10-30,829.65-19,746.70

Finding the Fourth Proportional to 20,553.10, 30,829.65 and 19,746.70

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Solution

The fourth proportional to 20,553.10, 30,829.65 and 19,746.70 is: 29,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.10 : 30,829.65 = 19,746.70 : x
  2. Step 2: Convert to fraction form
    20,553.10/30,829.65 = 19,746.70/x
  3. Step 3: Cross multiply
    20,553.10x = 30,829.65 × 19,746.70
  4. Step 4: Simplify right side
    20,553.10x = 608,783,849.66
  5. Step 5: Solve for x
    x = 608,783,849.66/20,553.10
  6. Step 6: Final answer
    x = 29,620.05

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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.