Home / 31,039.88-42,835.08-16,892.68

Finding the Fourth Proportional to 31,039.88, 42,835.08 and 16,892.68

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Solution

The fourth proportional to 31,039.88, 42,835.08 and 16,892.68 is: 23,311.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,039.88 : 42,835.08 = 16,892.68 : x
  2. Step 2: Convert to fraction form
    31,039.88/42,835.08 = 16,892.68/x
  3. Step 3: Cross multiply
    31,039.88x = 42,835.08 × 16,892.68
  4. Step 4: Simplify right side
    31,039.88x = 723,599,299.21
  5. Step 5: Solve for x
    x = 723,599,299.21/31,039.88
  6. Step 6: Final answer
    x = 23,311.92

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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.