Home / 28,864.48-43,304.40-9,143.36

Finding the Fourth Proportional to 28,864.48, 43,304.40 and 9,143.36

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Solution

The fourth proportional to 28,864.48, 43,304.40 and 9,143.36 is: 13,717.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,864.48 : 43,304.40 = 9,143.36 : x
  2. Step 2: Convert to fraction form
    28,864.48/43,304.40 = 9,143.36/x
  3. Step 3: Cross multiply
    28,864.48x = 43,304.40 × 9,143.36
  4. Step 4: Simplify right side
    28,864.48x = 395,947,718.78
  5. Step 5: Solve for x
    x = 395,947,718.78/28,864.48
  6. Step 6: Final answer
    x = 13,717.47

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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.