Home / 31,435.94-47,139.32-18,292.08

Finding the Fourth Proportional to 31,435.94, 47,139.32 and 18,292.08

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Solution

The fourth proportional to 31,435.94, 47,139.32 and 18,292.08 is: 27,429.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,435.94 : 47,139.32 = 18,292.08 : x
  2. Step 2: Convert to fraction form
    31,435.94/47,139.32 = 18,292.08/x
  3. Step 3: Cross multiply
    31,435.94x = 47,139.32 × 18,292.08
  4. Step 4: Simplify right side
    31,435.94x = 862,276,212.59
  5. Step 5: Solve for x
    x = 862,276,212.59/31,435.94
  6. Step 6: Final answer
    x = 27,429.63

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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.