Home / 27,735.04-38,294.40-17,139.20

Finding the Fourth Proportional to 27,735.04, 38,294.40 and 17,139.20

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Solution

The fourth proportional to 27,735.04, 38,294.40 and 17,139.20 is: 23,664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,735.04 : 38,294.40 = 17,139.20 : x
  2. Step 2: Convert to fraction form
    27,735.04/38,294.40 = 17,139.20/x
  3. Step 3: Cross multiply
    27,735.04x = 38,294.40 × 17,139.20
  4. Step 4: Simplify right side
    27,735.04x = 656,335,380.48
  5. Step 5: Solve for x
    x = 656,335,380.48/27,735.04
  6. Step 6: Final answer
    x = 23,664.48

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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.