Home / 57,972.64-86,958.96-21,028

Finding the Fourth Proportional to 57,972.64, 86,958.96 and 21,028

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Solution

The fourth proportional to 57,972.64, 86,958.96 and 21,028 is: 31,542.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,972.64 : 86,958.96 = 21,028 : x
  2. Step 2: Convert to fraction form
    57,972.64/86,958.96 = 21,028/x
  3. Step 3: Cross multiply
    57,972.64x = 86,958.96 × 21,028
  4. Step 4: Simplify right side
    57,972.64x = 1,828,573,010.88
  5. Step 5: Solve for x
    x = 1,828,573,010.88/57,972.64
  6. Step 6: Final answer
    x = 31,542.00

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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.