Home / 19,877.32-29,829.64-8,190.52

Finding the Fourth Proportional to 19,877.32, 29,829.64 and 8,190.52

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Solution

The fourth proportional to 19,877.32, 29,829.64 and 8,190.52 is: 12,291.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,877.32 : 29,829.64 = 8,190.52 : x
  2. Step 2: Convert to fraction form
    19,877.32/29,829.64 = 8,190.52/x
  3. Step 3: Cross multiply
    19,877.32x = 29,829.64 × 8,190.52
  4. Step 4: Simplify right side
    19,877.32x = 244,320,263.01
  5. Step 5: Solve for x
    x = 244,320,263.01/19,877.32
  6. Step 6: Final answer
    x = 12,291.41

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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.