Home / 35,686.73-53,517.15-11,987.21

Finding the Fourth Proportional to 35,686.73, 53,517.15 and 11,987.21

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Solution

The fourth proportional to 35,686.73, 53,517.15 and 11,987.21 is: 17,976.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,686.73 : 53,517.15 = 11,987.21 : x
  2. Step 2: Convert to fraction form
    35,686.73/53,517.15 = 11,987.21/x
  3. Step 3: Cross multiply
    35,686.73x = 53,517.15 × 11,987.21
  4. Step 4: Simplify right side
    35,686.73x = 641,521,048.07
  5. Step 5: Solve for x
    x = 641,521,048.07/35,686.73
  6. Step 6: Final answer
    x = 17,976.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.