Home / 22,748.56-31,381.02-15,662.68

Finding the Fourth Proportional to 22,748.56, 31,381.02 and 15,662.68

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Solution

The fourth proportional to 22,748.56, 31,381.02 and 15,662.68 is: 21,606.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,748.56 : 31,381.02 = 15,662.68 : x
  2. Step 2: Convert to fraction form
    22,748.56/31,381.02 = 15,662.68/x
  3. Step 3: Cross multiply
    22,748.56x = 31,381.02 × 15,662.68
  4. Step 4: Simplify right side
    22,748.56x = 491,510,874.33
  5. Step 5: Solve for x
    x = 491,510,874.33/22,748.56
  6. Step 6: Final answer
    x = 21,606.24

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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.