Home / 31,822.57-43,905.23-18,388.92

Finding the Fourth Proportional to 31,822.57, 43,905.23 and 18,388.92

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Solution

The fourth proportional to 31,822.57, 43,905.23 and 18,388.92 is: 25,370.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,822.57 : 43,905.23 = 18,388.92 : x
  2. Step 2: Convert to fraction form
    31,822.57/43,905.23 = 18,388.92/x
  3. Step 3: Cross multiply
    31,822.57x = 43,905.23 × 18,388.92
  4. Step 4: Simplify right side
    31,822.57x = 807,369,762.05
  5. Step 5: Solve for x
    x = 807,369,762.05/31,822.57
  6. Step 6: Final answer
    x = 25,370.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.