Home / 31,283.75-43,136.98-19,935.27

Finding the Fourth Proportional to 31,283.75, 43,136.98 and 19,935.27

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Solution

The fourth proportional to 31,283.75, 43,136.98 and 19,935.27 is: 27,488.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,283.75 : 43,136.98 = 19,935.27 : x
  2. Step 2: Convert to fraction form
    31,283.75/43,136.98 = 19,935.27/x
  3. Step 3: Cross multiply
    31,283.75x = 43,136.98 × 19,935.27
  4. Step 4: Simplify right side
    31,283.75x = 859,947,172.12
  5. Step 5: Solve for x
    x = 859,947,172.12/31,283.75
  6. Step 6: Final answer
    x = 27,488.62

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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.