Home / 20,828.10-31,241.86-5,033

Finding the Fourth Proportional to 20,828.10, 31,241.86 and 5,033

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Solution

The fourth proportional to 20,828.10, 31,241.86 and 5,033 is: 7,549.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,828.10 : 31,241.86 = 5,033 : x
  2. Step 2: Convert to fraction form
    20,828.10/31,241.86 = 5,033/x
  3. Step 3: Cross multiply
    20,828.10x = 31,241.86 × 5,033
  4. Step 4: Simplify right side
    20,828.10x = 157,240,281.38
  5. Step 5: Solve for x
    x = 157,240,281.38/20,828.10
  6. Step 6: Final answer
    x = 7,549.43

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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.