Home / 22,346.84-30,835.29-12,785.21

Finding the Fourth Proportional to 22,346.84, 30,835.29 and 12,785.21

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Solution

The fourth proportional to 22,346.84, 30,835.29 and 12,785.21 is: 17,641.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,346.84 : 30,835.29 = 12,785.21 : x
  2. Step 2: Convert to fraction form
    22,346.84/30,835.29 = 12,785.21/x
  3. Step 3: Cross multiply
    22,346.84x = 30,835.29 × 12,785.21
  4. Step 4: Simplify right side
    22,346.84x = 394,235,503.88
  5. Step 5: Solve for x
    x = 394,235,503.88/22,346.84
  6. Step 6: Final answer
    x = 17,641.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.