Home / 20,155.80-30,197.70-9,744.60

Finding the Fourth Proportional to 20,155.80, 30,197.70 and 9,744.60

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Solution

The fourth proportional to 20,155.80, 30,197.70 and 9,744.60 is: 14,599.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.80 : 30,197.70 = 9,744.60 : x
  2. Step 2: Convert to fraction form
    20,155.80/30,197.70 = 9,744.60/x
  3. Step 3: Cross multiply
    20,155.80x = 30,197.70 × 9,744.60
  4. Step 4: Simplify right side
    20,155.80x = 294,264,507.42
  5. Step 5: Solve for x
    x = 294,264,507.42/20,155.80
  6. Step 6: Final answer
    x = 14,599.50

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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.