Home / 22,586.42-31,172.19-13,638.98

Finding the Fourth Proportional to 22,586.42, 31,172.19 and 13,638.98

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Solution

The fourth proportional to 22,586.42, 31,172.19 and 13,638.98 is: 18,823.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,586.42 : 31,172.19 = 13,638.98 : x
  2. Step 2: Convert to fraction form
    22,586.42/31,172.19 = 13,638.98/x
  3. Step 3: Cross multiply
    22,586.42x = 31,172.19 × 13,638.98
  4. Step 4: Simplify right side
    22,586.42x = 425,156,875.97
  5. Step 5: Solve for x
    x = 425,156,875.97/22,586.42
  6. Step 6: Final answer
    x = 18,823.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.