Home / 31,269.87-43,152.43-16,929.70

Finding the Fourth Proportional to 31,269.87, 43,152.43 and 16,929.70

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Solution

The fourth proportional to 31,269.87, 43,152.43 and 16,929.70 is: 23,362.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,269.87 : 43,152.43 = 16,929.70 : x
  2. Step 2: Convert to fraction form
    31,269.87/43,152.43 = 16,929.70/x
  3. Step 3: Cross multiply
    31,269.87x = 43,152.43 × 16,929.70
  4. Step 4: Simplify right side
    31,269.87x = 730,557,436.08
  5. Step 5: Solve for x
    x = 730,557,436.08/31,269.87
  6. Step 6: Final answer
    x = 23,362.99

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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.