Home / 31,529.73-43,509.27-18,100.11

Finding the Fourth Proportional to 31,529.73, 43,509.27 and 18,100.11

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Solution

The fourth proportional to 31,529.73, 43,509.27 and 18,100.11 is: 24,977.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,529.73 : 43,509.27 = 18,100.11 : x
  2. Step 2: Convert to fraction form
    31,529.73/43,509.27 = 18,100.11/x
  3. Step 3: Cross multiply
    31,529.73x = 43,509.27 × 18,100.11
  4. Step 4: Simplify right side
    31,529.73x = 787,522,573.02
  5. Step 5: Solve for x
    x = 787,522,573.02/31,529.73
  6. Step 6: Final answer
    x = 24,977.14

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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.