Home / 20,984.56-31,507.86-14,008.04

Finding the Fourth Proportional to 20,984.56, 31,507.86 and 14,008.04

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Solution

The fourth proportional to 20,984.56, 31,507.86 and 14,008.04 is: 21,032.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.56 : 31,507.86 = 14,008.04 : x
  2. Step 2: Convert to fraction form
    20,984.56/31,507.86 = 14,008.04/x
  3. Step 3: Cross multiply
    20,984.56x = 31,507.86 × 14,008.04
  4. Step 4: Simplify right side
    20,984.56x = 441,363,363.19
  5. Step 5: Solve for x
    x = 441,363,363.19/20,984.56
  6. Step 6: Final answer
    x = 21,032.77

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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.