Home / 21,913.48-32,828.70-13,009.96

Finding the Fourth Proportional to 21,913.48, 32,828.70 and 13,009.96

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Solution

The fourth proportional to 21,913.48, 32,828.70 and 13,009.96 is: 19,490.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913.48 : 32,828.70 = 13,009.96 : x
  2. Step 2: Convert to fraction form
    21,913.48/32,828.70 = 13,009.96/x
  3. Step 3: Cross multiply
    21,913.48x = 32,828.70 × 13,009.96
  4. Step 4: Simplify right side
    21,913.48x = 427,100,073.85
  5. Step 5: Solve for x
    x = 427,100,073.85/21,913.48
  6. Step 6: Final answer
    x = 19,490.29

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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.