Home / 29,329.12-43,981.52-20,440.72

Finding the Fourth Proportional to 29,329.12, 43,981.52 and 20,440.72

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Solution

The fourth proportional to 29,329.12, 43,981.52 and 20,440.72 is: 30,652.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,329.12 : 43,981.52 = 20,440.72 : x
  2. Step 2: Convert to fraction form
    29,329.12/43,981.52 = 20,440.72/x
  3. Step 3: Cross multiply
    29,329.12x = 43,981.52 × 20,440.72
  4. Step 4: Simplify right side
    29,329.12x = 899,013,935.49
  5. Step 5: Solve for x
    x = 899,013,935.49/29,329.12
  6. Step 6: Final answer
    x = 30,652.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.