Home / 20,331.41-30,441.62-15,386.05

Finding the Fourth Proportional to 20,331.41, 30,441.62 and 15,386.05

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Solution

The fourth proportional to 20,331.41, 30,441.62 and 15,386.05 is: 23,037.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331.41 : 30,441.62 = 15,386.05 : x
  2. Step 2: Convert to fraction form
    20,331.41/30,441.62 = 15,386.05/x
  3. Step 3: Cross multiply
    20,331.41x = 30,441.62 × 15,386.05
  4. Step 4: Simplify right side
    20,331.41x = 468,376,363.92
  5. Step 5: Solve for x
    x = 468,376,363.92/20,331.41
  6. Step 6: Final answer
    x = 23,037.09

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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.