Home / 22,972.21-31,701.26-12,900.67

Finding the Fourth Proportional to 22,972.21, 31,701.26 and 12,900.67

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Solution

The fourth proportional to 22,972.21, 31,701.26 and 12,900.67 is: 17,802.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,972.21 : 31,701.26 = 12,900.67 : x
  2. Step 2: Convert to fraction form
    22,972.21/31,701.26 = 12,900.67/x
  3. Step 3: Cross multiply
    22,972.21x = 31,701.26 × 12,900.67
  4. Step 4: Simplify right side
    22,972.21x = 408,967,446.84
  5. Step 5: Solve for x
    x = 408,967,446.84/22,972.21
  6. Step 6: Final answer
    x = 17,802.71

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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.