Home / 20,256.16-27,891.12-17,265.28

Finding the Fourth Proportional to 20,256.16, 27,891.12 and 17,265.28

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Solution

The fourth proportional to 20,256.16, 27,891.12 and 17,265.28 is: 23,772.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.16 : 27,891.12 = 17,265.28 : x
  2. Step 2: Convert to fraction form
    20,256.16/27,891.12 = 17,265.28/x
  3. Step 3: Cross multiply
    20,256.16x = 27,891.12 × 17,265.28
  4. Step 4: Simplify right side
    20,256.16x = 481,547,996.31
  5. Step 5: Solve for x
    x = 481,547,996.31/20,256.16
  6. Step 6: Final answer
    x = 23,772.92

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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.