Home / 20,516.60-28,298.81-12,562.73

Finding the Fourth Proportional to 20,516.60, 28,298.81 and 12,562.73

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Solution

The fourth proportional to 20,516.60, 28,298.81 and 12,562.73 is: 17,327.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.60 : 28,298.81 = 12,562.73 : x
  2. Step 2: Convert to fraction form
    20,516.60/28,298.81 = 12,562.73/x
  3. Step 3: Cross multiply
    20,516.60x = 28,298.81 × 12,562.73
  4. Step 4: Simplify right side
    20,516.60x = 355,510,105.04
  5. Step 5: Solve for x
    x = 355,510,105.04/20,516.60
  6. Step 6: Final answer
    x = 17,327.93

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1.5x scale

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.