Home / 35,149.14-48,519.90-20,999.34

Finding the Fourth Proportional to 35,149.14, 48,519.90 and 20,999.34

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Solution

The fourth proportional to 35,149.14, 48,519.90 and 20,999.34 is: 28,987.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,149.14 : 48,519.90 = 20,999.34 : x
  2. Step 2: Convert to fraction form
    35,149.14/48,519.90 = 20,999.34/x
  3. Step 3: Cross multiply
    35,149.14x = 48,519.90 × 20,999.34
  4. Step 4: Simplify right side
    35,149.14x = 1,018,885,876.87
  5. Step 5: Solve for x
    x = 1,018,885,876.87/35,149.14
  6. Step 6: Final answer
    x = 28,987.51

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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.