Home / 20,030.60-30,004.90-11,247.08

Finding the Fourth Proportional to 20,030.60, 30,004.90 and 11,247.08

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Solution

The fourth proportional to 20,030.60, 30,004.90 and 11,247.08 is: 16,847.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.60 : 30,004.90 = 11,247.08 : x
  2. Step 2: Convert to fraction form
    20,030.60/30,004.90 = 11,247.08/x
  3. Step 3: Cross multiply
    20,030.60x = 30,004.90 × 11,247.08
  4. Step 4: Simplify right side
    20,030.60x = 337,467,510.69
  5. Step 5: Solve for x
    x = 337,467,510.69/20,030.60
  6. Step 6: Final answer
    x = 16,847.60

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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.