Home / 31,907.20-47,839.20-16,916.80

Finding the Fourth Proportional to 31,907.20, 47,839.20 and 16,916.80

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Solution

The fourth proportional to 31,907.20, 47,839.20 and 16,916.80 is: 25,363.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,907.20 : 47,839.20 = 16,916.80 : x
  2. Step 2: Convert to fraction form
    31,907.20/47,839.20 = 16,916.80/x
  3. Step 3: Cross multiply
    31,907.20x = 47,839.20 × 16,916.80
  4. Step 4: Simplify right side
    31,907.20x = 809,286,178.56
  5. Step 5: Solve for x
    x = 809,286,178.56/31,907.20
  6. Step 6: Final answer
    x = 25,363.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.