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Finding the Fourth Proportional to 22,913.48, 31,619.70 and 12,977.48

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Solution

The fourth proportional to 22,913.48, 31,619.70 and 12,977.48 is: 17,908.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,913.48 : 31,619.70 = 12,977.48 : x
  2. Step 2: Convert to fraction form
    22,913.48/31,619.70 = 12,977.48/x
  3. Step 3: Cross multiply
    22,913.48x = 31,619.70 × 12,977.48
  4. Step 4: Simplify right side
    22,913.48x = 410,344,024.36
  5. Step 5: Solve for x
    x = 410,344,024.36/22,913.48
  6. Step 6: Final answer
    x = 17,908.41

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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.