Home / 23,781.77-32,820.68-13,172.39

Finding the Fourth Proportional to 23,781.77, 32,820.68 and 13,172.39

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Solution

The fourth proportional to 23,781.77, 32,820.68 and 13,172.39 is: 18,178.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,781.77 : 32,820.68 = 13,172.39 : x
  2. Step 2: Convert to fraction form
    23,781.77/32,820.68 = 13,172.39/x
  3. Step 3: Cross multiply
    23,781.77x = 32,820.68 × 13,172.39
  4. Step 4: Simplify right side
    23,781.77x = 432,326,665.85
  5. Step 5: Solve for x
    x = 432,326,665.85/23,781.77
  6. Step 6: Final answer
    x = 18,178.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.