Home / 25,971.36-35,857.45-19,991.94

Finding the Fourth Proportional to 25,971.36, 35,857.45 and 19,991.94

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Solution

The fourth proportional to 25,971.36, 35,857.45 and 19,991.94 is: 27,601.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,971.36 : 35,857.45 = 19,991.94 : x
  2. Step 2: Convert to fraction form
    25,971.36/35,857.45 = 19,991.94/x
  3. Step 3: Cross multiply
    25,971.36x = 35,857.45 × 19,991.94
  4. Step 4: Simplify right side
    25,971.36x = 716,859,988.95
  5. Step 5: Solve for x
    x = 716,859,988.95/25,971.36
  6. Step 6: Final answer
    x = 27,601.94

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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.