Home / 20,881.23-31,243.35-14,653.38

Finding the Fourth Proportional to 20,881.23, 31,243.35 and 14,653.38

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Solution

The fourth proportional to 20,881.23, 31,243.35 and 14,653.38 is: 21,924.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881.23 : 31,243.35 = 14,653.38 : x
  2. Step 2: Convert to fraction form
    20,881.23/31,243.35 = 14,653.38/x
  3. Step 3: Cross multiply
    20,881.23x = 31,243.35 × 14,653.38
  4. Step 4: Simplify right side
    20,881.23x = 457,820,680.02
  5. Step 5: Solve for x
    x = 457,820,680.02/20,881.23
  6. Step 6: Final answer
    x = 21,924.99

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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.