Home / 20,004.96-30,013.92-9,615.36

Finding the Fourth Proportional to 20,004.96, 30,013.92 and 9,615.36

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Solution

The fourth proportional to 20,004.96, 30,013.92 and 9,615.36 is: 14,426.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.96 : 30,013.92 = 9,615.36 : x
  2. Step 2: Convert to fraction form
    20,004.96/30,013.92 = 9,615.36/x
  3. Step 3: Cross multiply
    20,004.96x = 30,013.92 × 9,615.36
  4. Step 4: Simplify right side
    20,004.96x = 288,594,645.81
  5. Step 5: Solve for x
    x = 288,594,645.81/20,004.96
  6. Step 6: Final answer
    x = 14,426.15

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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.