Home / 39,989.84-55,179.63-22,990.77

Finding the Fourth Proportional to 39,989.84, 55,179.63 and 22,990.77

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Solution

The fourth proportional to 39,989.84, 55,179.63 and 22,990.77 is: 31,723.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,989.84 : 55,179.63 = 22,990.77 : x
  2. Step 2: Convert to fraction form
    39,989.84/55,179.63 = 22,990.77/x
  3. Step 3: Cross multiply
    39,989.84x = 55,179.63 × 22,990.77
  4. Step 4: Simplify right side
    39,989.84x = 1,268,622,182.02
  5. Step 5: Solve for x
    x = 1,268,622,182.02/39,989.84
  6. Step 6: Final answer
    x = 31,723.62

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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.