Home / 20,017.20-30,030.48-8,323.92

Finding the Fourth Proportional to 20,017.20, 30,030.48 and 8,323.92

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Solution

The fourth proportional to 20,017.20, 30,030.48 and 8,323.92 is: 12,487.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.20 : 30,030.48 = 8,323.92 : x
  2. Step 2: Convert to fraction form
    20,017.20/30,030.48 = 8,323.92/x
  3. Step 3: Cross multiply
    20,017.20x = 30,030.48 × 8,323.92
  4. Step 4: Simplify right side
    20,017.20x = 249,971,313.08
  5. Step 5: Solve for x
    x = 249,971,313.08/20,017.20
  6. Step 6: Final answer
    x = 12,487.83

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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.