Home / 20,648.93-28,500.08-13,576.01

Finding the Fourth Proportional to 20,648.93, 28,500.08 and 13,576.01

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Solution

The fourth proportional to 20,648.93, 28,500.08 and 13,576.01 is: 18,737.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.93 : 28,500.08 = 13,576.01 : x
  2. Step 2: Convert to fraction form
    20,648.93/28,500.08 = 13,576.01/x
  3. Step 3: Cross multiply
    20,648.93x = 28,500.08 × 13,576.01
  4. Step 4: Simplify right side
    20,648.93x = 386,917,160.70
  5. Step 5: Solve for x
    x = 386,917,160.70/20,648.93
  6. Step 6: Final answer
    x = 18,737.88

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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.