Home / 35,885.16-49,524.21-20,781.90

Finding the Fourth Proportional to 35,885.16, 49,524.21 and 20,781.90

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Solution

The fourth proportional to 35,885.16, 49,524.21 and 20,781.90 is: 28,680.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,885.16 : 49,524.21 = 20,781.90 : x
  2. Step 2: Convert to fraction form
    35,885.16/49,524.21 = 20,781.90/x
  3. Step 3: Cross multiply
    35,885.16x = 49,524.21 × 20,781.90
  4. Step 4: Simplify right side
    35,885.16x = 1,029,207,179.80
  5. Step 5: Solve for x
    x = 1,029,207,179.80/35,885.16
  6. Step 6: Final answer
    x = 28,680.58

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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.