Home / 31,584.63-47,391.75-13,813.01

Finding the Fourth Proportional to 31,584.63, 47,391.75 and 13,813.01

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Solution

The fourth proportional to 31,584.63, 47,391.75 and 13,813.01 is: 20,725.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,584.63 : 47,391.75 = 13,813.01 : x
  2. Step 2: Convert to fraction form
    31,584.63/47,391.75 = 13,813.01/x
  3. Step 3: Cross multiply
    31,584.63x = 47,391.75 × 13,813.01
  4. Step 4: Simplify right side
    31,584.63x = 654,622,479.71
  5. Step 5: Solve for x
    x = 654,622,479.71/31,584.63
  6. Step 6: Final answer
    x = 20,725.98

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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.