Home / 31,742.27-43,801.12-18,992.87

Finding the Fourth Proportional to 31,742.27, 43,801.12 and 18,992.87

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Solution

The fourth proportional to 31,742.27, 43,801.12 and 18,992.87 is: 26,208.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,742.27 : 43,801.12 = 18,992.87 : x
  2. Step 2: Convert to fraction form
    31,742.27/43,801.12 = 18,992.87/x
  3. Step 3: Cross multiply
    31,742.27x = 43,801.12 × 18,992.87
  4. Step 4: Simplify right side
    31,742.27x = 831,908,978.01
  5. Step 5: Solve for x
    x = 831,908,978.01/31,742.27
  6. Step 6: Final answer
    x = 26,208.24

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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.