Home / 17,985.68-26,981.60-5,505.39

Finding the Fourth Proportional to 17,985.68, 26,981.60 and 5,505.39

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Solution

The fourth proportional to 17,985.68, 26,981.60 and 5,505.39 is: 8,259.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,985.68 : 26,981.60 = 5,505.39 : x
  2. Step 2: Convert to fraction form
    17,985.68/26,981.60 = 5,505.39/x
  3. Step 3: Cross multiply
    17,985.68x = 26,981.60 × 5,505.39
  4. Step 4: Simplify right side
    17,985.68x = 148,544,203.30
  5. Step 5: Solve for x
    x = 148,544,203.30/17,985.68
  6. Step 6: Final answer
    x = 8,259.03

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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.