Home / 28,964.54-39,989.12-22,236.77

Finding the Fourth Proportional to 28,964.54, 39,989.12 and 22,236.77

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Solution

The fourth proportional to 28,964.54, 39,989.12 and 22,236.77 is: 30,700.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.54 : 39,989.12 = 22,236.77 : x
  2. Step 2: Convert to fraction form
    28,964.54/39,989.12 = 22,236.77/x
  3. Step 3: Cross multiply
    28,964.54x = 39,989.12 × 22,236.77
  4. Step 4: Simplify right side
    28,964.54x = 889,228,552.81
  5. Step 5: Solve for x
    x = 889,228,552.81/28,964.54
  6. Step 6: Final answer
    x = 30,700.60

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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.