Home / 27,985.60-41,972.78-13,748.13

Finding the Fourth Proportional to 27,985.60, 41,972.78 and 13,748.13

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Solution

The fourth proportional to 27,985.60, 41,972.78 and 13,748.13 is: 20,619.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,985.60 : 41,972.78 = 13,748.13 : x
  2. Step 2: Convert to fraction form
    27,985.60/41,972.78 = 13,748.13/x
  3. Step 3: Cross multiply
    27,985.60x = 41,972.78 × 13,748.13
  4. Step 4: Simplify right side
    27,985.60x = 577,047,270.27
  5. Step 5: Solve for x
    x = 577,047,270.27/27,985.60
  6. Step 6: Final answer
    x = 20,619.43

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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.