Home / 28,860.26-43,304.09-19,989.24

Finding the Fourth Proportional to 28,860.26, 43,304.09 and 19,989.24

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Solution

The fourth proportional to 28,860.26, 43,304.09 and 19,989.24 is: 29,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.26 : 43,304.09 = 19,989.24 : x
  2. Step 2: Convert to fraction form
    28,860.26/43,304.09 = 19,989.24/x
  3. Step 3: Cross multiply
    28,860.26x = 43,304.09 × 19,989.24
  4. Step 4: Simplify right side
    28,860.26x = 865,615,585.66
  5. Step 5: Solve for x
    x = 865,615,585.66/28,860.26
  6. Step 6: Final answer
    x = 29,993.35

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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.