Home / 20,358.50-30,572.42-13,254.83

Finding the Fourth Proportional to 20,358.50, 30,572.42 and 13,254.83

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Solution

The fourth proportional to 20,358.50, 30,572.42 and 13,254.83 is: 19,904.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.50 : 30,572.42 = 13,254.83 : x
  2. Step 2: Convert to fraction form
    20,358.50/30,572.42 = 13,254.83/x
  3. Step 3: Cross multiply
    20,358.50x = 30,572.42 × 13,254.83
  4. Step 4: Simplify right side
    20,358.50x = 405,232,010.65
  5. Step 5: Solve for x
    x = 405,232,010.65/20,358.50
  6. Step 6: Final answer
    x = 19,904.81

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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.