Home / 31,204.60-46,807.10-12,486.20

Finding the Fourth Proportional to 31,204.60, 46,807.10 and 12,486.20

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Solution

The fourth proportional to 31,204.60, 46,807.10 and 12,486.20 is: 18,729.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,204.60 : 46,807.10 = 12,486.20 : x
  2. Step 2: Convert to fraction form
    31,204.60/46,807.10 = 12,486.20/x
  3. Step 3: Cross multiply
    31,204.60x = 46,807.10 × 12,486.20
  4. Step 4: Simplify right side
    31,204.60x = 584,442,812.02
  5. Step 5: Solve for x
    x = 584,442,812.02/31,204.60
  6. Step 6: Final answer
    x = 18,729.38

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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.