Home / 39,181.95-54,070.92-21,276.81

Finding the Fourth Proportional to 39,181.95, 54,070.92 and 21,276.81

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Solution

The fourth proportional to 39,181.95, 54,070.92 and 21,276.81 is: 29,361.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,181.95 : 54,070.92 = 21,276.81 : x
  2. Step 2: Convert to fraction form
    39,181.95/54,070.92 = 21,276.81/x
  3. Step 3: Cross multiply
    39,181.95x = 54,070.92 × 21,276.81
  4. Step 4: Simplify right side
    39,181.95x = 1,150,456,691.37
  5. Step 5: Solve for x
    x = 1,150,456,691.37/39,181.95
  6. Step 6: Final answer
    x = 29,361.90

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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.