Home / 22,943.10-31,663.10-12,872.50

Finding the Fourth Proportional to 22,943.10, 31,663.10 and 12,872.50

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Solution

The fourth proportional to 22,943.10, 31,663.10 and 12,872.50 is: 17,764.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,943.10 : 31,663.10 = 12,872.50 : x
  2. Step 2: Convert to fraction form
    22,943.10/31,663.10 = 12,872.50/x
  3. Step 3: Cross multiply
    22,943.10x = 31,663.10 × 12,872.50
  4. Step 4: Simplify right side
    22,943.10x = 407,583,254.75
  5. Step 5: Solve for x
    x = 407,583,254.75/22,943.10
  6. Step 6: Final answer
    x = 17,764.96

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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.