Home / 20,004.40-29,969.70-11,688.40

Finding the Fourth Proportional to 20,004.40, 29,969.70 and 11,688.40

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Solution

The fourth proportional to 20,004.40, 29,969.70 and 11,688.40 is: 17,511.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.40 : 29,969.70 = 11,688.40 : x
  2. Step 2: Convert to fraction form
    20,004.40/29,969.70 = 11,688.40/x
  3. Step 3: Cross multiply
    20,004.40x = 29,969.70 × 11,688.40
  4. Step 4: Simplify right side
    20,004.40x = 350,297,841.48
  5. Step 5: Solve for x
    x = 350,297,841.48/20,004.40
  6. Step 6: Final answer
    x = 17,511.04

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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.