Home / 15,289.72-22,936.30-13,720.06

Finding the Fourth Proportional to 15,289.72, 22,936.30 and 13,720.06

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Solution

The fourth proportional to 15,289.72, 22,936.30 and 13,720.06 is: 20,581.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289.72 : 22,936.30 = 13,720.06 : x
  2. Step 2: Convert to fraction form
    15,289.72/22,936.30 = 13,720.06/x
  3. Step 3: Cross multiply
    15,289.72x = 22,936.30 × 13,720.06
  4. Step 4: Simplify right side
    15,289.72x = 314,687,412.18
  5. Step 5: Solve for x
    x = 314,687,412.18/15,289.72
  6. Step 6: Final answer
    x = 20,581.63

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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.