Home / 31,132.08-42,961.44-16,984.92

Finding the Fourth Proportional to 31,132.08, 42,961.44 and 16,984.92

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Solution

The fourth proportional to 31,132.08, 42,961.44 and 16,984.92 is: 23,438.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,132.08 : 42,961.44 = 16,984.92 : x
  2. Step 2: Convert to fraction form
    31,132.08/42,961.44 = 16,984.92/x
  3. Step 3: Cross multiply
    31,132.08x = 42,961.44 × 16,984.92
  4. Step 4: Simplify right side
    31,132.08x = 729,696,621.48
  5. Step 5: Solve for x
    x = 729,696,621.48/31,132.08
  6. Step 6: Final answer
    x = 23,438.74

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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.