Home / 19,761.40-27,283.26-15,277.24

Finding the Fourth Proportional to 19,761.40, 27,283.26 and 15,277.24

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Solution

The fourth proportional to 19,761.40, 27,283.26 and 15,277.24 is: 21,092.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.40 : 27,283.26 = 15,277.24 : x
  2. Step 2: Convert to fraction form
    19,761.40/27,283.26 = 15,277.24/x
  3. Step 3: Cross multiply
    19,761.40x = 27,283.26 × 15,277.24
  4. Step 4: Simplify right side
    19,761.40x = 416,812,911.00
  5. Step 5: Solve for x
    x = 416,812,911.00/19,761.40
  6. Step 6: Final answer
    x = 21,092.28

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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.