Home / 25,983.16-35,859.54-15,918.28

Finding the Fourth Proportional to 25,983.16, 35,859.54 and 15,918.28

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Solution

The fourth proportional to 25,983.16, 35,859.54 and 15,918.28 is: 21,968.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,983.16 : 35,859.54 = 15,918.28 : x
  2. Step 2: Convert to fraction form
    25,983.16/35,859.54 = 15,918.28/x
  3. Step 3: Cross multiply
    25,983.16x = 35,859.54 × 15,918.28
  4. Step 4: Simplify right side
    25,983.16x = 570,822,198.39
  5. Step 5: Solve for x
    x = 570,822,198.39/25,983.16
  6. Step 6: Final answer
    x = 21,968.93

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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.