Home / 31,032.82-42,825.39-16,885.68

Finding the Fourth Proportional to 31,032.82, 42,825.39 and 16,885.68

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Solution

The fourth proportional to 31,032.82, 42,825.39 and 16,885.68 is: 23,302.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,032.82 : 42,825.39 = 16,885.68 : x
  2. Step 2: Convert to fraction form
    31,032.82/42,825.39 = 16,885.68/x
  3. Step 3: Cross multiply
    31,032.82x = 42,825.39 × 16,885.68
  4. Step 4: Simplify right side
    31,032.82x = 723,135,831.42
  5. Step 5: Solve for x
    x = 723,135,831.42/31,032.82
  6. Step 6: Final answer
    x = 23,302.29

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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.