Home / 31,101.08-42,919.49-16,953.92

Finding the Fourth Proportional to 31,101.08, 42,919.49 and 16,953.92

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Solution

The fourth proportional to 31,101.08, 42,919.49 and 16,953.92 is: 23,396.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,101.08 : 42,919.49 = 16,953.92 : x
  2. Step 2: Convert to fraction form
    31,101.08/42,919.49 = 16,953.92/x
  3. Step 3: Cross multiply
    31,101.08x = 42,919.49 × 16,953.92
  4. Step 4: Simplify right side
    31,101.08x = 727,653,599.90
  5. Step 5: Solve for x
    x = 727,653,599.90/31,101.08
  6. Step 6: Final answer
    x = 23,396.41

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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.