Home / 40,029.90-55,226.64-30,834.24

Finding the Fourth Proportional to 40,029.90, 55,226.64 and 30,834.24

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Solution

The fourth proportional to 40,029.90, 55,226.64 and 30,834.24 is: 42,539.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,029.90 : 55,226.64 = 30,834.24 : x
  2. Step 2: Convert to fraction form
    40,029.90/55,226.64 = 30,834.24/x
  3. Step 3: Cross multiply
    40,029.90x = 55,226.64 × 30,834.24
  4. Step 4: Simplify right side
    40,029.90x = 1,702,871,380.68
  5. Step 5: Solve for x
    x = 1,702,871,380.68/40,029.90
  6. Step 6: Final answer
    x = 42,539.99

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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.