Home / 22,908.12-31,613.30-13,353.67

Finding the Fourth Proportional to 22,908.12, 31,613.30 and 13,353.67

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Solution

The fourth proportional to 22,908.12, 31,613.30 and 13,353.67 is: 18,428.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,908.12 : 31,613.30 = 13,353.67 : x
  2. Step 2: Convert to fraction form
    22,908.12/31,613.30 = 13,353.67/x
  3. Step 3: Cross multiply
    22,908.12x = 31,613.30 × 13,353.67
  4. Step 4: Simplify right side
    22,908.12x = 422,153,575.81
  5. Step 5: Solve for x
    x = 422,153,575.81/22,908.12
  6. Step 6: Final answer
    x = 18,428.12

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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.