Home / 15,564.20-23,429.36-13,956.75

Finding the Fourth Proportional to 15,564.20, 23,429.36 and 13,956.75

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Solution

The fourth proportional to 15,564.20, 23,429.36 and 13,956.75 is: 21,009.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,564.20 : 23,429.36 = 13,956.75 : x
  2. Step 2: Convert to fraction form
    15,564.20/23,429.36 = 13,956.75/x
  3. Step 3: Cross multiply
    15,564.20x = 23,429.36 × 13,956.75
  4. Step 4: Simplify right side
    15,564.20x = 326,997,755.07
  5. Step 5: Solve for x
    x = 326,997,755.07/15,564.20
  6. Step 6: Final answer
    x = 21,009.62

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.