Home / 20,119.94-30,180.29-6,972.74

Finding the Fourth Proportional to 20,119.94, 30,180.29 and 6,972.74

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Solution

The fourth proportional to 20,119.94, 30,180.29 and 6,972.74 is: 10,459.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.94 : 30,180.29 = 6,972.74 : x
  2. Step 2: Convert to fraction form
    20,119.94/30,180.29 = 6,972.74/x
  3. Step 3: Cross multiply
    20,119.94x = 30,180.29 × 6,972.74
  4. Step 4: Simplify right side
    20,119.94x = 210,439,129.53
  5. Step 5: Solve for x
    x = 210,439,129.53/20,119.94
  6. Step 6: Final answer
    x = 10,459.24

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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.