Home / 31,810.22-47,712.90-12,093.20

Finding the Fourth Proportional to 31,810.22, 47,712.90 and 12,093.20

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Solution

The fourth proportional to 31,810.22, 47,712.90 and 12,093.20 is: 18,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,810.22 : 47,712.90 = 12,093.20 : x
  2. Step 2: Convert to fraction form
    31,810.22/47,712.90 = 12,093.20/x
  3. Step 3: Cross multiply
    31,810.22x = 47,712.90 × 12,093.20
  4. Step 4: Simplify right side
    31,810.22x = 577,001,642.28
  5. Step 5: Solve for x
    x = 577,001,642.28/31,810.22
  6. Step 6: Final answer
    x = 18,138.88

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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.