Home / 22,717.80-31,334.88-13,749.84

Finding the Fourth Proportional to 22,717.80, 31,334.88 and 13,749.84

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Solution

The fourth proportional to 22,717.80, 31,334.88 and 13,749.84 is: 18,965.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,717.80 : 31,334.88 = 13,749.84 : x
  2. Step 2: Convert to fraction form
    22,717.80/31,334.88 = 13,749.84/x
  3. Step 3: Cross multiply
    22,717.80x = 31,334.88 × 13,749.84
  4. Step 4: Simplify right side
    22,717.80x = 430,849,586.42
  5. Step 5: Solve for x
    x = 430,849,586.42/22,717.80
  6. Step 6: Final answer
    x = 18,965.29

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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.