Home / 35,327.66-48,755.25-20,991.87

Finding the Fourth Proportional to 35,327.66, 48,755.25 and 20,991.87

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Solution

The fourth proportional to 35,327.66, 48,755.25 and 20,991.87 is: 28,970.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,327.66 : 48,755.25 = 20,991.87 : x
  2. Step 2: Convert to fraction form
    35,327.66/48,755.25 = 20,991.87/x
  3. Step 3: Cross multiply
    35,327.66x = 48,755.25 × 20,991.87
  4. Step 4: Simplify right side
    35,327.66x = 1,023,463,869.82
  5. Step 5: Solve for x
    x = 1,023,463,869.82/35,327.66
  6. Step 6: Final answer
    x = 28,970.61

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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.