Home / 21,032.96-31,527.04-15,822.72

Finding the Fourth Proportional to 21,032.96, 31,527.04 and 15,822.72

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Solution

The fourth proportional to 21,032.96, 31,527.04 and 15,822.72 is: 23,717.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032.96 : 31,527.04 = 15,822.72 : x
  2. Step 2: Convert to fraction form
    21,032.96/31,527.04 = 15,822.72/x
  3. Step 3: Cross multiply
    21,032.96x = 31,527.04 × 15,822.72
  4. Step 4: Simplify right side
    21,032.96x = 498,843,526.35
  5. Step 5: Solve for x
    x = 498,843,526.35/21,032.96
  6. Step 6: Final answer
    x = 23,717.23

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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.