Home / 31,212.92-43,088.28-18,462.08

Finding the Fourth Proportional to 31,212.92, 43,088.28 and 18,462.08

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Solution

The fourth proportional to 31,212.92, 43,088.28 and 18,462.08 is: 25,486.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,212.92 : 43,088.28 = 18,462.08 : x
  2. Step 2: Convert to fraction form
    31,212.92/43,088.28 = 18,462.08/x
  3. Step 3: Cross multiply
    31,212.92x = 43,088.28 × 18,462.08
  4. Step 4: Simplify right side
    31,212.92x = 795,499,272.42
  5. Step 5: Solve for x
    x = 795,499,272.42/31,212.92
  6. Step 6: Final answer
    x = 25,486.22

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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.