Home / 20,265.51-27,941.07-15,491.37

Finding the Fourth Proportional to 20,265.51, 27,941.07 and 15,491.37

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Solution

The fourth proportional to 20,265.51, 27,941.07 and 15,491.37 is: 21,358.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265.51 : 27,941.07 = 15,491.37 : x
  2. Step 2: Convert to fraction form
    20,265.51/27,941.07 = 15,491.37/x
  3. Step 3: Cross multiply
    20,265.51x = 27,941.07 × 15,491.37
  4. Step 4: Simplify right side
    20,265.51x = 432,845,453.57
  5. Step 5: Solve for x
    x = 432,845,453.57/20,265.51
  6. Step 6: Final answer
    x = 21,358.72

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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.