Home / 16,315.20-24,440.40-9,721.80

Finding the Fourth Proportional to 16,315.20, 24,440.40 and 9,721.80

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Solution

The fourth proportional to 16,315.20, 24,440.40 and 9,721.80 is: 14,563.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,315.20 : 24,440.40 = 9,721.80 : x
  2. Step 2: Convert to fraction form
    16,315.20/24,440.40 = 9,721.80/x
  3. Step 3: Cross multiply
    16,315.20x = 24,440.40 × 9,721.80
  4. Step 4: Simplify right side
    16,315.20x = 237,604,680.72
  5. Step 5: Solve for x
    x = 237,604,680.72/16,315.20
  6. Step 6: Final answer
    x = 14,563.39

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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.