Home / 25,640.40-35,371.12-19,965.04

Finding the Fourth Proportional to 25,640.40, 35,371.12 and 19,965.04

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Solution

The fourth proportional to 25,640.40, 35,371.12 and 19,965.04 is: 27,541.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,640.40 : 35,371.12 = 19,965.04 : x
  2. Step 2: Convert to fraction form
    25,640.40/35,371.12 = 19,965.04/x
  3. Step 3: Cross multiply
    25,640.40x = 35,371.12 × 19,965.04
  4. Step 4: Simplify right side
    25,640.40x = 706,185,825.64
  5. Step 5: Solve for x
    x = 706,185,825.64/25,640.40
  6. Step 6: Final answer
    x = 27,541.92

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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.