Home / 18,431.93-27,648.04-11,432.31

Finding the Fourth Proportional to 18,431.93, 27,648.04 and 11,432.31

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Solution

The fourth proportional to 18,431.93, 27,648.04 and 11,432.31 is: 17,148.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.93 : 27,648.04 = 11,432.31 : x
  2. Step 2: Convert to fraction form
    18,431.93/27,648.04 = 11,432.31/x
  3. Step 3: Cross multiply
    18,431.93x = 27,648.04 × 11,432.31
  4. Step 4: Simplify right side
    18,431.93x = 316,080,978.46
  5. Step 5: Solve for x
    x = 316,080,978.46/18,431.93
  6. Step 6: Final answer
    x = 17,148.56

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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.