Home / 22,272.87-33,402.65-12,139.67

Finding the Fourth Proportional to 22,272.87, 33,402.65 and 12,139.67

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Solution

The fourth proportional to 22,272.87, 33,402.65 and 12,139.67 is: 18,205.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,272.87 : 33,402.65 = 12,139.67 : x
  2. Step 2: Convert to fraction form
    22,272.87/33,402.65 = 12,139.67/x
  3. Step 3: Cross multiply
    22,272.87x = 33,402.65 × 12,139.67
  4. Step 4: Simplify right side
    22,272.87x = 405,496,981.11
  5. Step 5: Solve for x
    x = 405,496,981.11/22,272.87
  6. Step 6: Final answer
    x = 18,205.87

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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.