Home / 20,672.16-31,070.89-13,676.04

Finding the Fourth Proportional to 20,672.16, 31,070.89 and 13,676.04

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Solution

The fourth proportional to 20,672.16, 31,070.89 and 13,676.04 is: 20,555.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672.16 : 31,070.89 = 13,676.04 : x
  2. Step 2: Convert to fraction form
    20,672.16/31,070.89 = 13,676.04/x
  3. Step 3: Cross multiply
    20,672.16x = 31,070.89 × 13,676.04
  4. Step 4: Simplify right side
    20,672.16x = 424,926,751.57
  5. Step 5: Solve for x
    x = 424,926,751.57/20,672.16
  6. Step 6: Final answer
    x = 20,555.51

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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.