Home / 31,124.09-42,950.97-16,976.63

Finding the Fourth Proportional to 31,124.09, 42,950.97 and 16,976.63

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Solution

The fourth proportional to 31,124.09, 42,950.97 and 16,976.63 is: 23,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,124.09 : 42,950.97 = 16,976.63 : x
  2. Step 2: Convert to fraction form
    31,124.09/42,950.97 = 16,976.63/x
  3. Step 3: Cross multiply
    31,124.09x = 42,950.97 × 16,976.63
  4. Step 4: Simplify right side
    31,124.09x = 729,162,725.83
  5. Step 5: Solve for x
    x = 729,162,725.83/31,124.09
  6. Step 6: Final answer
    x = 23,427.60

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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.