Home / 23,431.47-35,063.78-18,781.35

Finding the Fourth Proportional to 23,431.47, 35,063.78 and 18,781.35

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Solution

The fourth proportional to 23,431.47, 35,063.78 and 18,781.35 is: 28,105.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,431.47 : 35,063.78 = 18,781.35 : x
  2. Step 2: Convert to fraction form
    23,431.47/35,063.78 = 18,781.35/x
  3. Step 3: Cross multiply
    23,431.47x = 35,063.78 × 18,781.35
  4. Step 4: Simplify right side
    23,431.47x = 658,545,030.60
  5. Step 5: Solve for x
    x = 658,545,030.60/23,431.47
  6. Step 6: Final answer
    x = 28,105.15

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1.5x scale

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.