Home / 31,203.11-46,742.75-14,540.20

Finding the Fourth Proportional to 31,203.11, 46,742.75 and 14,540.20

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Solution

The fourth proportional to 31,203.11, 46,742.75 and 14,540.20 is: 21,781.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,203.11 : 46,742.75 = 14,540.20 : x
  2. Step 2: Convert to fraction form
    31,203.11/46,742.75 = 14,540.20/x
  3. Step 3: Cross multiply
    31,203.11x = 46,742.75 × 14,540.20
  4. Step 4: Simplify right side
    31,203.11x = 679,648,933.55
  5. Step 5: Solve for x
    x = 679,648,933.55/31,203.11
  6. Step 6: Final answer
    x = 21,781.45

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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.