Home / 20,219.04-30,327.06-7,740.18

Finding the Fourth Proportional to 20,219.04, 30,327.06 and 7,740.18

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Solution

The fourth proportional to 20,219.04, 30,327.06 and 7,740.18 is: 11,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.04 : 30,327.06 = 7,740.18 : x
  2. Step 2: Convert to fraction form
    20,219.04/30,327.06 = 7,740.18/x
  3. Step 3: Cross multiply
    20,219.04x = 30,327.06 × 7,740.18
  4. Step 4: Simplify right side
    20,219.04x = 234,736,903.27
  5. Step 5: Solve for x
    x = 234,736,903.27/20,219.04
  6. Step 6: Final answer
    x = 11,609.70

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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.