Home / 31,563.71-43,573.70-19,630.89

Finding the Fourth Proportional to 31,563.71, 43,573.70 and 19,630.89

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Solution

The fourth proportional to 31,563.71, 43,573.70 and 19,630.89 is: 27,100.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,563.71 : 43,573.70 = 19,630.89 : x
  2. Step 2: Convert to fraction form
    31,563.71/43,573.70 = 19,630.89/x
  3. Step 3: Cross multiply
    31,563.71x = 43,573.70 × 19,630.89
  4. Step 4: Simplify right side
    31,563.71x = 855,390,511.59
  5. Step 5: Solve for x
    x = 855,390,511.59/31,563.71
  6. Step 6: Final answer
    x = 27,100.44

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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.