Home / 35,892.48-49,519.44-20,781.12

Finding the Fourth Proportional to 35,892.48, 49,519.44 and 20,781.12

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Solution

The fourth proportional to 35,892.48, 49,519.44 and 20,781.12 is: 28,670.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,892.48 : 49,519.44 = 20,781.12 : x
  2. Step 2: Convert to fraction form
    35,892.48/49,519.44 = 20,781.12/x
  3. Step 3: Cross multiply
    35,892.48x = 49,519.44 × 20,781.12
  4. Step 4: Simplify right side
    35,892.48x = 1,029,069,424.97
  5. Step 5: Solve for x
    x = 1,029,069,424.97/35,892.48
  6. Step 6: Final answer
    x = 28,670.89

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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.