Home / 20,106.39-27,737.71-12,554.61

Finding the Fourth Proportional to 20,106.39, 27,737.71 and 12,554.61

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Solution

The fourth proportional to 20,106.39, 27,737.71 and 12,554.61 is: 17,319.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.39 : 27,737.71 = 12,554.61 : x
  2. Step 2: Convert to fraction form
    20,106.39/27,737.71 = 12,554.61/x
  3. Step 3: Cross multiply
    20,106.39x = 27,737.71 × 12,554.61
  4. Step 4: Simplify right side
    20,106.39x = 348,236,131.34
  5. Step 5: Solve for x
    x = 348,236,131.34/20,106.39
  6. Step 6: Final answer
    x = 17,319.67

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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.