Home / 31,388.24-47,078.14-11,664.08

Finding the Fourth Proportional to 31,388.24, 47,078.14 and 11,664.08

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Solution

The fourth proportional to 31,388.24, 47,078.14 and 11,664.08 is: 17,494.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,388.24 : 47,078.14 = 11,664.08 : x
  2. Step 2: Convert to fraction form
    31,388.24/47,078.14 = 11,664.08/x
  3. Step 3: Cross multiply
    31,388.24x = 47,078.14 × 11,664.08
  4. Step 4: Simplify right side
    31,388.24x = 549,123,191.21
  5. Step 5: Solve for x
    x = 549,123,191.21/31,388.24
  6. Step 6: Final answer
    x = 17,494.55

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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.