Home / 39,581.64-54,623.28-21,676.32

Finding the Fourth Proportional to 39,581.64, 54,623.28 and 21,676.32

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Solution

The fourth proportional to 39,581.64, 54,623.28 and 21,676.32 is: 29,913.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,581.64 : 54,623.28 = 21,676.32 : x
  2. Step 2: Convert to fraction form
    39,581.64/54,623.28 = 21,676.32/x
  3. Step 3: Cross multiply
    39,581.64x = 54,623.28 × 21,676.32
  4. Step 4: Simplify right side
    39,581.64x = 1,184,031,696.73
  5. Step 5: Solve for x
    x = 1,184,031,696.73/39,581.64
  6. Step 6: Final answer
    x = 29,913.66

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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.