Home / 25,639.22-35,398.14-19,659.40

Finding the Fourth Proportional to 25,639.22, 35,398.14 and 19,659.40

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Solution

The fourth proportional to 25,639.22, 35,398.14 and 19,659.40 is: 27,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,639.22 : 35,398.14 = 19,659.40 : x
  2. Step 2: Convert to fraction form
    25,639.22/35,398.14 = 19,659.40/x
  3. Step 3: Cross multiply
    25,639.22x = 35,398.14 × 19,659.40
  4. Step 4: Simplify right side
    25,639.22x = 695,906,193.52
  5. Step 5: Solve for x
    x = 695,906,193.52/25,639.22
  6. Step 6: Final answer
    x = 27,142.25

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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.