Home / 22,712.40-31,343.85-14,211.81

Finding the Fourth Proportional to 22,712.40, 31,343.85 and 14,211.81

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Solution

The fourth proportional to 22,712.40, 31,343.85 and 14,211.81 is: 19,612.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,712.40 : 31,343.85 = 14,211.81 : x
  2. Step 2: Convert to fraction form
    22,712.40/31,343.85 = 14,211.81/x
  3. Step 3: Cross multiply
    22,712.40x = 31,343.85 × 14,211.81
  4. Step 4: Simplify right side
    22,712.40x = 445,452,840.87
  5. Step 5: Solve for x
    x = 445,452,840.87/22,712.40
  6. Step 6: Final answer
    x = 19,612.76

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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.