Home / 35,781.12-49,370.76-21,634.80

Finding the Fourth Proportional to 35,781.12, 49,370.76 and 21,634.80

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Solution

The fourth proportional to 35,781.12, 49,370.76 and 21,634.80 is: 29,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,781.12 : 49,370.76 = 21,634.80 : x
  2. Step 2: Convert to fraction form
    35,781.12/49,370.76 = 21,634.80/x
  3. Step 3: Cross multiply
    35,781.12x = 49,370.76 × 21,634.80
  4. Step 4: Simplify right side
    35,781.12x = 1,068,126,518.45
  5. Step 5: Solve for x
    x = 1,068,126,518.45/35,781.12
  6. Step 6: Final answer
    x = 29,851.68

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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.