Home / 22,178.48-33,267.72-12,938

Finding the Fourth Proportional to 22,178.48, 33,267.72 and 12,938

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Solution

The fourth proportional to 22,178.48, 33,267.72 and 12,938 is: 19,407

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,178.48 : 33,267.72 = 12,938 : x
  2. Step 2: Convert to fraction form
    22,178.48/33,267.72 = 12,938/x
  3. Step 3: Cross multiply
    22,178.48x = 33,267.72 × 12,938
  4. Step 4: Simplify right side
    22,178.48x = 430,417,761.36
  5. Step 5: Solve for x
    x = 430,417,761.36/22,178.48
  6. Step 6: Final answer
    x = 19,407

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.