Home / 28,987.47-39,997.80-17,653.14

Finding the Fourth Proportional to 28,987.47, 39,997.80 and 17,653.14

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Solution

The fourth proportional to 28,987.47, 39,997.80 and 17,653.14 is: 24,358.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.47 : 39,997.80 = 17,653.14 : x
  2. Step 2: Convert to fraction form
    28,987.47/39,997.80 = 17,653.14/x
  3. Step 3: Cross multiply
    28,987.47x = 39,997.80 × 17,653.14
  4. Step 4: Simplify right side
    28,987.47x = 706,086,763.09
  5. Step 5: Solve for x
    x = 706,086,763.09/28,987.47
  6. Step 6: Final answer
    x = 24,358.34

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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.