Home / 31,822.05-47,739.96-12,100.98

Finding the Fourth Proportional to 31,822.05, 47,739.96 and 12,100.98

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Solution

The fourth proportional to 31,822.05, 47,739.96 and 12,100.98 is: 18,154.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,822.05 : 47,739.96 = 12,100.98 : x
  2. Step 2: Convert to fraction form
    31,822.05/47,739.96 = 12,100.98/x
  3. Step 3: Cross multiply
    31,822.05x = 47,739.96 × 12,100.98
  4. Step 4: Simplify right side
    31,822.05x = 577,700,301.16
  5. Step 5: Solve for x
    x = 577,700,301.16/31,822.05
  6. Step 6: Final answer
    x = 18,154.09

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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.