Home / 20,516.48-30,762.41-9,409.25

Finding the Fourth Proportional to 20,516.48, 30,762.41 and 9,409.25

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Solution

The fourth proportional to 20,516.48, 30,762.41 and 9,409.25 is: 14,108.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.48 : 30,762.41 = 9,409.25 : x
  2. Step 2: Convert to fraction form
    20,516.48/30,762.41 = 9,409.25/x
  3. Step 3: Cross multiply
    20,516.48x = 30,762.41 × 9,409.25
  4. Step 4: Simplify right side
    20,516.48x = 289,451,206.29
  5. Step 5: Solve for x
    x = 289,451,206.29/20,516.48
  6. Step 6: Final answer
    x = 14,108.23

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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.